in fig1 there is seen a wood fence bearing offensive language thereon . this graffiti can be painted over , chemically treated to remove the graffiti , or the wood fencing can be replaced . unfortunately , in most instances it is not cost effective to use the apparatus of this invention on a wood fence , as wood fences can be replaced at relatively low cost . while all of the above named processes are but temporary fixes , none of these options attack the problem head on of deterrence , as opposed to compensating for the efforts of the tagger , that is reacting to such attacks after the fact . the invention of this application constitutes a before the attack approach to the graffiti and tagging , problem , herein after “ g & amp ; t ”. in fig2 a typical plate girder bridge , used for both roads and railroads is seen spanning a city street . this bridge is close to a city street , and access to the rails and the bridge from the city street is easy for persons on foot . thus bridges such as this one are quite susceptible to tagging . usually bridges of steel are painted gray but sometimes black or even white . research has shown that black paint and white paint are the most common colors used by g & amp ; t artists . perhaps this is due to the ready availability of these two colors , and that these colors offer the most contrast to black , white and gray original surfaces when applied to them . on the side of the bridge is seen both graffiti and tagging , which forms of art expression are considered offensive to most people , as opposed to being considered aesthetic . fig3 depicts a perspective view of one baffle , 10 , used to form a baffle assembly 31 of this invention . the baffle is made of lightweight thin wall aluminum square tubing sized about 2 . 0 inches × 2 . 0 inches on both the horizontalfaces , 15 f and 15 r and vertical faces , 19 r and 19 f and about 6 . 0 inches long on its sides 13 l & amp ; 13 r . the tubing is open at the front , 17 and rear cross sections , 19 and preferably each face has a series of perforations or openings , 21 , therein . here each face or side has three 1 . 25 inch diameter inch circular openings , these openings are designated 21 a , 21 b & amp ; 21 c for the left side , 33 a - c for the top surface , 34 a - c for the right side and 24 a - c for the bottom surface of the baffle . the openings , for ease of manufacture can be linearly aligned both vertically and horizontally as shown here . but such , need not be the case . for example , fig4 shows a baffle having 3 openings , 2 of one diameter designated 21 , and 1 smaller opening 27 , on the vertical faces , and 4 similar openings , 27 , on the horizontal faces . the diameter of the openings can vary from about 0 . 875 inches in diameter , to about 1 . 25 inches in diameter , and the tubing length can vary from about 5 inches to 8 inches . in the unit shown in fig3 , each opening is 1 . 25 inches in diameter , ½ inch between hole # 1 & amp ; 2 , ½ inch between hole 2 & amp ; 3 and ⅞ inch from the outer right edge to hole 1 and the same from the forward edge to hole 3 . other variations of hole patterns are also contemplated and are within the skill of the art to calculate for square tubing 2 ″× 2 ″× 6 ″ as well as for other square tubing sizes which can range from about 1 . 5 ″× 1 . 5 ″ to 2 . 5 ″× 2 . 5 ″ and have a length from about 5 inches to 9 inches . fig5 is a front perspective view of an unattached baffle assembly 31 . here the single baffle shown in fig3 is depicted in a grid of 6 horizontal and 6 vertical baffles , with a space equal to 2 ″× 2 ″ between adjacent baffles both vertically and horizontally . this assembly is deemed to be unattached as it is shown unattached to the mounting posts that also form a part of this invention and which are discussed infra . in order to achieve this baffle assembly 36 baffles are laid out in a jig such that they can be welded , glued or otherwise attached to one another in this dual direction spaced relationship of 6 by 6 baffles . also in this view the optional baffle backer board or backer plate is seen attached as by welding , or through another known technique to the rear face of the baffle assembly . there are both benefits and detriments to the use of the optional backer board . beneficially , any spray paint not dispersed within the baffle members , will collect on the back board , thus protecting the substrate that is desired to be protected from graffiti . on the other hand , the backer board , a . k . a . backer plate , adds cost and weight to each baffle assembly to be mounted . it is contemplated that customers will balance their needs and make the correct decision about using the optional backer plate for their particular needs . the backer plate when employed is a flat panel of sheet metal , preferably stainless steel to avoid rust and interaction with any surface to which it may be attached including the mounting posts shown in fig6 and 7 . when employed it is suggested that the backer plate be sized to cover most but not all individual baffles , to render the attachment of the assembly to the substrate or mounting posts easier . that is the flat plates used for mounting to the mounting posts should remain uncovered . in fig6 , there is shown a front perspective view of 2 baffle assemblies 10 , seen placed side by side and attached to two vertically spaced mounting posts 40 . reference is also made to fig7 , which is a rear perspective view of the two mounted baffle assemblies . since both mounting posts are the same only the upper one will be described in detail and the slight distinction in the lower one will be set out as well . in these views , the pair of side by side baffle assemblies , 100 , are seen to be attached to a pair of spaced mounting posts , 39 , each of which has four mounting flanges 45 that are attached to the u - tube 43 as discussed infra . each u - tube 43 is a bent tubular member whose diameter is welded or otherwise attached at its terminii to a wall plate 41 , which while shown as square need not be that shape . each wall plate 41 has a series of throughbores for screws or bolts for attachment to the surface to be protected such as a building wall . the mount flanges 45 are seen to be a 3 piece structure having a front flat member 45 a , and two members each of which has an arcuate cutout that matches the radius of the u - tube . see both figures . obviously the mount flanges may be made as one piece or three pieces welded together as is understood in the metal craft art . between the wall plates 41 is a wall assembly 48 comprised of a wall plate 40 and a short tube 47 , having an arcuate cutout along the length of the short tube that matches the radius of of the u - tube to permit a 90 degree junction of element 47 to the u - tube . note also the presence of throughbores 42 in the center mount plate 40 . as can be seen in fig7 , two centrally disposed mount flanges are seen , one for the edge of each of the two baffle assemblies . the baffle assemblies may be welded or otherwise attached to the u - tubes 43 , prior to the attachment of the mounting posts 39 to a substrate or after the mounting posts are attached to the substrate , not seen in these two figures . while the term u - tube has been employed for element 43 , the element can also be a solid bar instead of being a tubular member if desired , especially if an aluminum alloy is used instead of steel . the mode of attachment of each baffle assembly to the mount flanges 45 is by the use of bolts or screws which pass through strategically placed pairs of spaced flat plates 51 which are disposed within the baffle assembly itself between spaced baffles . these flat plates are best seen in the single baffle assembly of fig1 . the flat plates 51 are noted as 51 a at the top right of the rear view here ; 51 b between the 5 th and 6 th individual top row of baffles ; 51 c at the far left at the bottom ; and 51 d between the 1 st and 2 nd individual baffles on the bottom row . thus the flat plates are not aligned either horizontally or vertically within the baffle assembly , 100 . due to the location of the flat plates on the baffle assembly differing from top to bottom , the location of the mount flanges 45 on the upper mounting post 40 and lower mounting post 39 differ to accommodate the different spacings of the flat plates 51 . the reader is referred to fig1 , which more easily depicts the distinct locations of the flat plates 51 at the top and bottom of a baffle assembly . it is also to be noted that in the front view fig6 , no backer plate is employed on either baffle assembly , but in fig7 , a backer plate is present on each baffle assembly , but the flat plates for mounting are left unimpeded . in fig8 , a front view without the backer plate , one can see the 4 flat plates for mounting at the far left upper corner and the far right lower corner , but the flat plates 51 are set in 2 inches in the upper right and lower left corners of the double baffle assembly , such that plate is disposed between the first and second individual baffles in the lower left and upper right areas . note also the absence of a backer plate in fig8 such that paint has a further distance to travel before impaction on a surface normal to the spraying “ artist ”. that is paint needs to travel all the way beyond the mounting posts to the substrate intended for protection . in fig9 , the upper left flat plate 51 is seen closeup attached to the upper mounting post , and the two adjacent interior flat plates are also seen side by side attached to their respective flanges 45 . fig1 is a side elevational view of a baffle show n attached to an upper and to a lower mounting post . in this view the baffle assemblies , only the side of one of which assembles can be seen are mounted , not 90 degrees to the ground , but here at a 10 degree offset downward . it is preferred to mount the baffles at between a 5 degree and a 15 degree offset , as an angular disposition has been found to collect more paint internally , especially on the interior upper surface of the baffles , than if the baffle were mounted without an offset , ie straight up and down . in this view the baffles employed are the individual baffles found in fig3 of this application . fig1 is a front closeup perspective view that illustrates the upper left corner of a baffle assembly showing the exterior flat plate 51 for attachment and several individual baffles . to ease the understanding of the structure slanted shading lines have been added to show which upper face and lower face go together with side surfaces to form an individual baffle . fig1 is a rear perspective view of a baffle assembly showing the 4 flat plates , 51 a , which from a front view would be the upper left corner . plate 51 b . is the inset right mount , and 51 c is the lower right corner mount when front viewed , and 51 d is the inset lower left flat plate for attachment to the substrate or mounting post . fig1 also helps the reader to understand the 6 × 6 offset of the individual baffles to form this 2 foot by 2 foot baffle assembly . it is seen that i have created an apparatus that when mounted on a substrate inhibits a graffiti artist &# 39 ; s artistic episode , by dispersing the cone shaped spray that emanates from a spray can such that the image or message is readily indiscernible , thus frustrating the efforts of the so called artist . the relative cost of installation of the apparatuses of this invention on a substrate are small in comparison to the sum of the expenses for the periodic removal of graffiti from walls , bridges , and other substrates . while i have suggested that the baffles be about 6 inches in elongation , the baffles can range from about 5 inches from front to back to about 10 inches , with 6 inches being preferred . while i have shown 2 foot square assemblies of 36 baffles each , larger and smaller baffle assemblies , both square and rectangular fall within the scope of this invention . as to color , the assemblies of this invention may have a random color scheme ( non - uniform ) or a color scheme of one or more colors to either blend in or be different from the substrate to which the assemblies are mounted . since certain changes may be made i the above apparatus without departing from the scope of the invention herein involved , it is intended that all matter contained in the above description and shown in the accompanying drawings , shall be interpreted as illustrative only and not in a limiting sense .