Billy Jo asked Mary Sue to go to a movie with him.
“No, I won’t go to the movie with you,” said Mary Sue, “because I know what you will do! You will unbutton my blouse with one hand, and have your other hand up my leg!”
“I wouldn’t dare do that!” howled Billy Jo. “Why, people behind me could see us!”
“That’s right,” said Mary Sue. “So could we get there early and take our seats in the back row?”