They're wearing a SOMBERERO
Because there can only be Juan.
A Baked Bean!
3, duh. (My ex's 9 year old little sister told me this joke, and followed is up with: "and YOU'RE the math guy!" >< Burned.)
I don't know, you tell me.
PEEr pressure!
He was in a deep depression.
They can wear casual clothes to work
A: So his feet wouldn't fall asleep.