For me, one of the hardest things about dealing with abuse is the wall of denial. I've a strong sense of justice, which hurts me even more when I can see that there is none. The only thing is to walk away knowing they're ... well, I think they're mentally ill.
I used to shut myself in the cupboard when I was little too Scott. That was one of the first things the therapist asked me, whether I'd hidden in a cupboard, and it blew my mind that she knew!
Wall of denial? Yes. Not me though.
I used to hide under the bathroom sink.