lewis genuinely dont know - all i can view this from is my own personal experience, and maybe i am just very lucky to have a child with aspergers who is "un-angry" but aspergers or no - i can tell you now i never tolerated rude, violent or bad behaviour from him or my NT daughter, i parented them much the same in that respect and feel i have been very lucky(??). id like to think i parented them both with oodles of common sense, yes my DS has special needs which i do accommodate, but he has always needed boundaries and thats what he got. im sure i sound smug....sorry. im not. its hard work. he is 18 now and of course its never been plain sailing but i feel immensely proud of him. he is a good egg.