So many of these things overlap with characteristics and symptoms and signs... DS5 is extremely sensitive, and the more boredom that sets in, the more trouble he will get in (at home and at school). Everyone who meets him will tell you what an amazingly well behaved child he is and would not believe me for a moment that he has ever been the first one to throw a punch at school (though it's only happened once for us). Being frustrated and bored can bring out the "best" in all of us. I hope you find your answers, but like Kriston said, it could be just a bad fit.