Q: "What has an IQ of 42?"
A: "40 Marines plus their lieutenant"
Q. "Why does the Navy put Marines on board ships?"
A. "Because sheep would be too obvious"
Q. "What do smart Marines and UFOs have in common?"
A. "You always hear about them but you never see them"
Q. "Why do the commodes in Marine barracks have the cut-out type seats?"
A. "So that if the seat falls while they're drinking, it won't smack them in the back of the head"