Because he fainted.
Hop in
because it's the only time a black man can tell a crowd of white people to put their hands in the air.
Vehicular man's laughter
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.)
Dr. Pokemon.
Testicular cancer
I don't know two minutes ago he seemed normal and then he fainted.