My just turned 13 yr old autistic son has started 'going to the toilet' a lot, and 'going for a rest'. I am fairly convinced that these are euphemisms (iyswim) and am being very careful to not go into his bedroom without knocking and to stay away from the bathroom. However, it is currently at a few times a day.
While I am pleased that he has clearly grasped the need to be private, I am concerned by the frequency of his 'rests' and also, do I - well, my husband, he'd die a thousand deaths if I tried to talk to him - need to have a chat or do you not talk about such things, given he is clearly behaving appropriately with regard to being private.
I am deeply uncomfortable with the whole thing, I'm his mum
but I feel that there's probably something we are expected to do or say, I just don't know what it is.
I have talked to him about sex and where babies come from, and feelings and privacy and how you never touch someone unless they want to be touched etc and I think he would rather jump off a cliff than ever have another such conversation with me 
How have you/do you/will you handle this? I would ideally like to stick my fingers in my ears, go lalalalalala and ignore the whole thing, but that is probably not an option.