The Troublemaker

On the first day of class, the teacher asked any troublemakers to stand up.  After a few moments of silence, a shy little girl stood up.  "Are you a troublemaker?" the teacher asked.

"No," replied the girl,  "I just hate to see you standing there all by yourself."

Thanks to Matthew for contributing this joke from his book--
Jokelopedia The Biggest, Best, Silliest, Dumbest Joke Book Ever