I go on T nation from time to time. There was a couple of articles in there about bodyweight calf raises, squats and lunges. As weight lifters most probably have the same attitude that I had in that we dismiss body weight exercises. I know several times in my life going through basic training and advance stuff where it was all running and body weight exercises. They can reduce any man into submission.
At the time Asbury Park, NJ use to be a poor black town for the most part. Then the gays moved in and it's now the hip happening place for restaurants, bars and clubs. Back in the day when it was a hell hole I drove by a broken down play ground when I was working in the area. No kids used it but there were a group of men working out on the play ground apparatus. They were doing things like dips, chins, push ups body weight squats and other stuff. It was summer and these black guys were ripped and muscular. Impressive builds. The next town over was Bradley beach. An somewhat affluent white town with a gym that had everything you can think of in terms of equipment. Prior to seeing the play ground work out guys I was in that gym. Nothing but out of shape white guys that had everything thing they needed. If I had only two choices where to work out it would have been that playground.