I was just preparing for a speech on helping support people with behavior challenges in the community, and I can across a great toolkit from Autism Speaks on this topic. 

Here is the whole bit for your reading pleasure: http://www.autismspeaks.org/sites/default/files/challenging_behaviors_tool_kit.pdf

It is a long read for a toolkit, but it has a lot of great ideas. It is made for parents of people with autism, but I think it can apply for a lot of the behaviors I've seen. 

Have a good one! 

--