PDA, or Sticking to principles

I don't have PDA, although some people might of thought so at times, if one has principles and another wants you to go against them and you refuse, what then are you principaled or do you have PDA?

PDA is one of those terms I have problems with, I get that at it's severest it's diabeling, but it's a term I also hear being used about people and particularly children who are just being children. All children have to test the boundaries, especially when the first learn what a powerful word NO is, is a child who's refusing to wear socks for example exercising the word NO or do they have PDA? Refusing to do something and having a screaming fit when made to do it is a pretty normal part of growing up, as is misbehaving in teenage years, labelling someone as having PDA could mean that they're not being listened to or heard when something really is wrong. I was a school refuser, I just wouldn't go, I hated it and always did, I bunked for a couple of years at secondary school, they just couldn't get me stay in the building.

I was reading something a while ago about army prisons, when you get a sentence and a dishonourable discharge as part of it, you still have to do army things, like all the physical exercises and stuff, why do people not just say no? If they're going throw me out anyway why should I have to get up at dawn and do a run? I know my reply would have lots of FF's in it and I would not comply, what could they do to me beyond imprisoning me and giving me a discharge? Would that be PDA or the actions of someone thoroughly fed up?