Never know unless you go find out for yourself. Everyone has their own feeling about it. Some hate it, some like it. I was one of those who liked it because I like getting dirty, shooting guns, and fitness. Some people will jump off buidlings, hang themselves in a wall locker, not drink any water during a ruck march and dehydrate, or go AWOL...I don't know why because doing some push ups ain't the worst thing in the world.