It's not a good way to motivate people. As an adult I was put down and told things like that and guess what it didn't make me lose weight. As a child it was HORRIBLE!!! With certain things like you say in bootcamp and stuff is one thing(even though I've heard of a guy who killed himself because of the way a drill sargent treated him)! You just can't use that kind of motivation for someone who is trying to lose weight.
WHAT HAPPENED TO THIS BEING A POSITIVE THREAD??