A guy walks into a bar with a giraffe and says, "A beer for me,
 and one for the giraffe, please." So they proceed to drink. Then: 
 "...a shot for me and one for the giraffe, too" And they keep
 drinking all evening.
 
 Finally the giraffe passes out on the floor of the bar. The guy
 pays the tab and gets up to leave. 
 
 The bartender shouts out, "Hey! You're not going to leave that
 lying on the floor, are you?"
 
 The guy replies "That's not a lion... it's a giraffe."