A guy was trying to console a friend who'd just found his wife
in bed with another man.
"Get over it, buddy," he said. "It's not the end of the world." 
"It's all right for you to say," answered his buddy. "But what
if you came home one night and caught another man in bed with
your wife?" 
The fella ponders for a moment, then says, "I'd break his cane
and kick his seeing-eye dog in the ass."