Guy in red sweatshirt: Do you want to buy a candy bar? They're only one dollar!
Girl: No thanks.
Guy: Only a Communist would pass up a deal like this.
Girl: Communist? You're the one wearing red!

Guy #1: ...in the knees, the balls, or the gallbladder.
Guy #2: I have a gallbladder!
Guy #1: My mom doesn't. She had it removed.
Guy #2: I have 6 gallbladders. To float.
Guy #1: Hw many gallstones do you have?

On a Friday:
Physics Teacher: Failures are important because they're the lessons of tommorow.
Student: You mean Monday.
Teacher: I mean the future!