This is a bit of a random one, but it's turning into the latest obsession here! DS is 8, ASD, and at mainstream school. He has a couple of friends, is generally ignored by most of the rest of the class (but better than being picked on I guess). This term there seems to have been a lot of swear-swapping, what's the worst swear word you know, etc.
He is getting really obsessed with this - what is and isn't a swear word, the different levels of swearing (from Oh God and upwards). He desperately wants to be like the others and swear with ease (I am not saying I condone that!) but is petrified of the consequences, so he thinks about it nearly all the time. And the discussions at home are lengthy and regular.
I know it is probably a phase that will pass, but do I just ignore it? He was in trouble at school today about something on the computer, I need the full story from teacher, but it's such a bloody distraction from everything else, both for him and for teachers who will hone in on it instead of helping.
If embrace it and study it. Create a system for categorising and research origins and rare examples, test how it impacts in different settings and with different demographics..... Far more interesting than many of our "enthusiasms".