I have this friend who always seemed to lean slightly to the left all the time. It used to bother me, so I suggested he see a doctor, and have his legs checked out. For years, he refused, telling me I was crazy.

But last week he finally went and, sure enough, the doctor discovered his left leg was 1/4" shorter than his right.

A quick bit of orthopedic surgery later and both legs are exactly the same length now. He no longer leans.

"So", I said, "You didn't believe me when I told you a doctor could fix your leg."

He just looked at me and said, "I stand corrected."