That one teacher that doesn't let you chew gum in class... and gives detentions for it...
Eric: *Chews gum slowly while taking French quiz*
Mrs. Harnish: "ARE YOU CHEWING GUM?!?! NEIN NEIN NEIN NEIN NEIN!!! OFF TO SUPERVISION WITH YOU!!!"
Jim: *whispering* "Wow, what a Gum Nazi!"