There was a guy who leaned slightly to the left. His friend suggested he go and see a chiropractor and have his legs checked. After years of refusing, he finally went to the chiropractor only discover that one leg was ¾" shorter than his right. A quick bit of adjusting later, he was cured, and both legs are exactly the same length now, and he no longer leans to the left.
His friend said, "You didn’t believe me when I told you my chiropractor could fix your leg."
He just looked at his friend and said, "I stand corrected."]