I have an autistic student in my class this year and also had him last year. He is mostly non-verbal but does talk some-not in conversation really-mostly just repeats what we are saying or says hello or talks to himself. He can be very sweet and is not violent to others or himself ever. At times he has ripped clothing on purpose but recently it is out of control. He has been ripping winter jackets, mittens, hats, and pants at school. He sits and laughs and thinks he is hilarious. We let him know it is not but it doesn't seem to phase him. At home he is ripping flooring, a sofa, curtains, lots of everyone's clothes, etc... I feel bad for the mom because it would drive me absolutely crazy if my child did this on a regular basis. She cannot afford to be replacing winter coats much less larger things. Any thoughts on how to get him to stop or why he might be doing this?