Peter turned to the naysayer, smirked, and said, “Give it a rest, Leslie! You are just jealous of me. Why don’t we have a push-up contest to see which one of us is the strongest?”

Instead of a verbal reply, Leslie dropped to the ground. The young man dropped beside her, and once they were both in position, the competition began, with one of their peers counting off each push-up. As they passed fifty, though, it seemed like the event could go on forever. Then, suddenly, someone shouted, ...