This is a big one I feel. My best friend has Asperger’s and does this from time to time. A recent example is I was telling him about a Thule roof rack I got for my car. I pronounced it Thool, and he interrupted me and said “actually you should know it’s pronounced Tooly”.

It didn’t bother me, but we have a pact that I point out gently when he does things like that. It’s an inconsequential error because it doesn’t really matter how it is pronounced. And some people may find it rude or “know it all” to be corrected like that over something like that.