hammer don't hurt 'em

Something said to a person when that person is obviously exceeding expectations. Kind of like, "Go easy, you're doing too good of a job. The others don't stand a chance."

Often applies to being well dressed, just looking sharp or just being too good at a sport.

A reference to MC Hammer's third album.

When you have on a sharp new outfit that's going to help you win over the ladies, a friend might say to you before you go out, "Hammer don't hurt 'em."

My foot hurts and I don't know why

A pain in the foot, caused by something or other that cannot be identified, could be as simple as a sharp pebble in your shoe to as bad as you having stage four cancer tumor in your foot.

Guy1: Ow, my foot hurts and I don't know why.
Guy2: That sucks.