They always take things literally.
Like a joke that involves a pun on a word that has different meanings in different languages. Please tell us what languages they are in.
Tulips on your organ EDIT: This blew up. (No pun intended)
A clop cop.
There's no such thing as negative energy
You get a tardy grade. (that explains the joke if you don't get it.)
Sure, you know how it works, but now it's dead.
