Out of bounds ball, under penalty of one stroke, as nearly as possible at the spot from which the original ball was last played. Reference: "Rules of Golf 2012-2015, Rule 27-1 b. Ball Out of Bounds", published by the R&A - and approved by the United States Golf Association (USGA). A golf ball is "out of bounds" when all of it lies "out of bounds". A player may stand out of bounds to play a ball lying within bounds. Reference: "Rules of Golf 2012-2015, Section II Definitions". In skiing, an out of bounds area is considered one that is outside of the area
Eight-ball find the it acceptable. It is primarily as a way to prevent "tucking up", whereby a player does not attempt to pot and instead just rolls up to their object ball to use it to snooker their opponent; tucking up is seen as unsporting, so being forced to play harder shots is quite welcomed. There are several sets of rules which use a combination of many others in an attempt to find a balance between WPA rules, which are seen as more aggressive, and WEPF rules which are often referred to, pejoratively, as "chess" because of the amount of play