A guy walks into a bar with a dog. As they sit down at the counter, the bartender tells them, that no dogs are allowed. The dog looks up and says, "I don't see any sign posted about dogs."

To which the bartender looks at them both and exclaims, "Hey! You can talk! This is wild. I'm buying you both a beer." They both thanked him and proceeded to enjoy their libation.

After a while, the man excuses himself to go to the bathroom. The bartender leans over the bar and asks the dog if he would go over to the 7-11 across the street, and ask for change from a $20 to buy a newspaper. He tells the dog that his friend across the street would get a kick out of it. In return, he'll buy beers for the both of them for the rest of the day and keep the $20 for his trouble.

The dog agrees and taking the $20 in his mouth, walks out of the bar.

When the man comes out of the bathroom, he asks where his dog has gone and panics when he is told the dog has gone outside without him. He runs outside and begins to cross the street when he hears a sound in the alley next to the bar.

When he turns into the alley, he discovers that his is dog humping a French Poodle. Shocked, the man looks to his dog and says, "Rex, how could you? You've never done anything like this before!"

The dog looks up at him and said, "Well, I've never had a $20 bill before!"