Big Joe
A guy runs into a bar. "I'll have a vodka tonic, but make it snappy!" he says to the bartender.
The barkeep hands him his drink. The guy throws a twenty down and says, "Keep the change. I gotta get out of here, Big Joe's coming!"
Hearing this, patrons all over the bar frantically get up and stampede out the door, tossing cash and credit cards on their tables and the bar to pay their checks.
The bartender splutters in protest as his bar empties, but to no avail. "Man, we gotta get out…