Related:

• I know a guy so dumb, he thinks 'innuendo' is an Italian suppository.
• Did you hear that Dan Quayle is so confused that he thinks "Shake Your Booty" is one of the Arabs that we're negotiating with.
• He who laughs last thinks slowest.
• He thinks too much: such men are dangerous.
• Man, The Animal That Thinks He Isn't An Animal!
• He thinks he's really smooth, but he's only C^1. He's always going off on a tangent.
• This Pole got married, but he was too dumb to know what to do on his wedding night.
  "For God's sake, Stan," said his bride, "you take that thing you play with and you put it where I pee....
• Three grade-school children learned how to swear from their friends at school.
  Thinking highly of their accomplishment, they decided to try it out at home, choosing the next morning's breakfast to show off their newly acquired skill....