Ok I'm new here and have a question about my roommates dog. Trump(the dog) is 15 months old. He shows no signs of intelligence. He sqeeks constantly, he can't hardley do the simplest of tricks, is barely house trained, chews, bites , barks at his own image in a mirror, and is agressive to animals and humans all of this in spite of 2500 bucks worth of the best training in our area. Trump is also extremly short for a supposedly pure breed pitbull of his age. I suspect that he was a runt and/or a water puppy who had brain damage from being breed purely to make money/fight. I've breed and trained all sorts of dogs from mutts to french bulldogs to german shepherds and I am a k-9 officer and have never seen a dog act like this. It's hard for me to describe him adequalty but he acts at least mildly retarded. Has anyone ever encountered a dog like this. I know some of his "pedigree" since fostered his grandfather who was a great dog. I guess my question is is he retarded or just poorley breed or both. thnkas for reading this long post.