Blind Rage.

I just read this yesterday. DS is almost 17 and has once-in-a-while "rage" issues - typically he tends to show his anger on himself and bites his arm.

http://www.myaspergerschild.com/2013/10/blind-rage-in-children-on-autism.html

I thought the article was good and thought provoking and provides some ideas. I read the article aloud to my son/wife and we discussed on how he could identify the "beginnings of his rage" and what is that we could do. He shared that when he is melting-down, we not answering his (repetitive) questions and remaining silent really angers him. 

And we were thinking answering will exacerbate the situation!