A guy walks into a bar, sits down, and the bartender says, “What’ll you have?”

“Jim Beam on the rocks,” the man says.

As the drink is being served, the bartender says, “That’ll be $7.50, please.”

The guy scowls. “What are you talking about? I don’t own you anything!”

“Of course you do!”

“I most certainly do not!”

Another man down the bar has been taking it all in. He approaches the bartender and says, “I happen to be a lawyer, and what this man says is correct. You made the original offer, which was binding upon acceptance. Since there was no stipulation for remuneration, Ipso Facto the drink is free.”

 The bartender isn’t happy, but he accepts defeat. He leans across the bar and barks to the guy, “OK, you beat me out of a drink fair and square. Now get your ass out, and don’t let me catch you back in here again!”

A few days later, the same guy strolls though the door. The bartender is furious.

“Hey, deadbeat! What are you doing here? I told you to stay away from this place!”

The man recoils in shock. “Are you crazy, sir? What are you talking about? I’ve never been in this bar!

The contrite bartender apologizes. I’m so sorry for the mistake. You must have a double.”

“Why, thank you! the guy says with a smile. “Make it Jack Daniel’s this time.”