Mr. Smarty Pants Knows

Redheads are particularly sensitive to pain.

Mickey Rooney claims Mickey Mouse was named after him. He said when he was a little boy he met Walt Disney, who was trying to come up with a name for a cartoon mouse he had just invented.

Dogs' brains produce oxytocin, associated in humans with love and affection.

According to researcher Dr. Tom Robinson, sugar does not actually make children hyper. However, parents who believe it does see what they expect. When researchers tell parents their children have consumed sugar, the parents report hyperactive behavior even if the researcher was lying.

I Love Lucy still garners CBS $20 million a year in rerun income.