Once when I was teaching, my leg was itching so badly that I pulled up my pant leg to scratch the itch (I know, TMI!). One of my first-grade students with Autism said,
"What are you doing?"
"Scratching my leg," I said. "It really itches."
"You know, you should get one of those cone-things you can wear around your neck. It works really good for my dog!"
Gee, thanks...I won't take it personally.