Forget Brat Camp if I had said to my mother 'Fuck off you bitch from hell' I would still be locked in my bed room and i'm 42!
Sorry, however'angry' and 'misunderstood' these kids are they have no right to talk to anyone like that.
It seems to me that part of the probelm with these kids is that they have learned over the years that their behaviour has no consequences. their parents may not have followed through, schools are often not able to dicipline kids any ome in an meaningful way (and I am opposed to the cane etc before anyone objects).
When in a wilderness camp they quickly find out that if they misbehave there are consequences and these are unpleasent.....just like in the real grown up world. I can choose not to work, and then end up with no cash, for example.
I can do much less with the kids I teach, but I try to make the consequences real and relevant. For example of boy spent break picking chewing gum from tables, I'd found him drawing over the benches. I doubt he will do it again, at least not for me!
I think these kids need to grow up, fast, and realise that no-one owes them a living, or any respect if they continue to behave in the way they do at present