awww hon, im sorry to hear that he was removed.....i can see things from both sides, as my daughter has special needs too, shes blind, so i see things from a parents point of view and a leaders too.
I have found that communication is the key to deal with the boys i have had, and being taught *how* to handle them and what to honestly expect so i could deal with them.
The little boy who is about to join us really suprised me the other week, his mum came to take pics of us to get him used to the idea of *us*, then she brought him along with shoes for the shoe appeal we were running, and only stayed 5 mins, then the plan was she would come in and out as she wanted while i ran the session to let the little boy deal wth us and the noise without feeling he had to stay or join in, last week he joined us for a game, and the craft too! his mum was really surprised - however we are a small group at the moment only 6 other boys.
Did you offer to come into the sessions with your son, to help out with him, were you able to talk to the leader etc etc.
I know all children with aspergers show different *symptoms* for want of a better word, and some are harder to deal with, but i have found that routine within session, and clearly knowing what to expect and how to handle them, helps me, and speaking to them and the parents about what i expect helps them too...
sorry for the waffle!!!!
Is there any other group nearby? the little boy im getting has bi-passed his local group and is coming to me, cos she heard about my group?