Chemicals

From the mouths of my students:

A.: "If I could be anybody in this room for a day, I'd want to be David."
M.: "Why?"
A.: "Because he has a pet squirrel."
M., laughing hysterically: "A pet squirrel?!?! THAT'S funny!"

*****

A.:"When a boy and a girl like each other, it's because they have chemicals."