A man walks into a bar with his dog.

A man walks into a bar with a small dog under his arm and sits down at the counter, placing the dog on the stool next to him. The bartender says, "Sorry, pal. No dogs allowed."
The man says, "But this is a special dog -- he talks!"
"Yeah, right," says the bartender. "Now get out of here before I throw you out."
"No, wait," says the man. "I'll prove it." He turns to the dog and asks, "What do you normally find on top of a house?"
"Roof!" says the dog, wagging his tail.
"Listen, pal..." says the bartender.
"Wait," says the man, "I'll ask another question." He turns to the dog again and asks, "What's the opposite of soft?"
"Ruff!" exclaims the dog.
"Quit wasting my time and get out of here," says the bartender.
"One more chance," pleads the man. Turning to the dog again, he asks, "Who was the greatest baseball player that ever lived?"
"Ruth!" barked the dog.
"Okay, that's it!" says the bartender, and physically throws both man and dog out the door and onto the street.
Turning to the man, the dogs shrugs and says, "Maybe I should have said Joe Dimaggio?"