Bill walks into a bar with a dog. The bartender says, 'You can't bring that dog in here.'
'You don't understand,' says Bill. 'This is no regular dog, he can talk.'
'Listen, pal,' says the bartender. 'If that dog can talk, I'll give you a hundred bucks.'
Bill puts the dog on a stool, and asks him,
'What's on top of a house?'
'Right. And what's on the outside of a tree?'
'And who's the greatest baseball player of all time?'
'I guess you've heard enough,' says the man. 'I'll take the hundred in twenties.'
The bartender is furious, 'Listen, pal,' he says, 'get out of here before I belt you.' As soon as they're on the street, the dog turns to Bill and says, 'Bill, do you think I should have said "DiMaggio"?'