Method and {HEAD ~ system} for dispatching a message to an alternate object upon its failure to find a required method at {TAIL ~ the object} to which originally sent 
Method and { HEAD ~ system } for dispatching a message to an alternate object upon its failure to find a required method at { TAIL ~ the object } to which originally sent
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH