There are all kinds of people at my health club who use canes and walkers and crutches to get around; all kinds of people who wear braces and slings. Many members are overweight, and some are so skinny their Spandex sags. Some have beer bellies and love handles, hairy backs, bald heads, flabby arms and sagging pecs. And the men are not perfect either. Stand behind anyone using a stair stepper for …