TEACHER: Whose shirt is that? Is this your shirt, Dave?#
DAVE: No, sir. It's not my shirt. This is my shirt. My shirt's blue.#
TEACHER: Is this shirt Tim's?#
DAVE: Perhaps it is, sir. Tim's shirt's white.#
TEACHER: Tim!#
TIM: Yes, sir?#
TEACHER: Is this your shirt?#
TIM: Yes, sir.#
TEACHER: Here you are. Catch!#
TIM: Thank you, sir.&