There is usually a merchant and customer copy. and sometimes an extra one just for wasting trees. And on some POS systems those receipts can be reprinted by the server.
Changing my vote to Carpenter. 7 seasons, 4 teams (Dallas, Miami, Detroit, New England). 10 starts, 3.5 sacks, 96 tackles, 1 interception (against Dallas and returned for a score when he was with Detroit).
Dbair is right about Ekuban playing mean. No matter what at least the guy was nasty. Recall a game against the bears I believe where he grabbed a sacked QB by the helmet and tried to rip his head off. Had a decent season or two in Denver after he left here, if I recall. Knee injuries slowed him...