I don't think this is what he meant:
(scroll down because I don't know how to make a jump)
Everyone seems to be running these days, and last Saturday I felt pretty good, so I decided to see the absolute farthest I could go (about nine miles out, then I limped home). Between the cramps and thigh chafing I didn't realize extent of these particular abrasions until the hot water hit me in the shower the next morning.