This is why I love my job and also why I seriously wonder how come I still have a job at all --
(Student licks purple glue stick.)
ME: (sharply) Do NOT lick the glue sticks!
BOY: (reasoning) I can if I want to. It's MY glue stick.
ME: (reasoning back) It's not food.
BOY: (beaming) But it says that it's non-toxic!
ME: (beaming back) Just because it won't kill you, that doesn't mean it won't kill your brain cells.
(Momentary silence throughout the entire room)
BOY: (triumphantly) HA HA! The joke's on you! I don't have any brain cells!
ME: (in my head) No, sweetie, the joke's on YOU.
(GIRL sitting in desk near me looks at me with huge eyes and starts to laugh hysterically.)
ME: (innocently) Ooops. Did I say that out loud? My bad.