if I had awhile I could think of more. but the ones where they had time to do it and didn't upset me.

but there's another minor one:

at the gate to the school in HBP, Snape and Draco are standing there and Harry and Snape have a short staredown. Why, oh why, did they not at least have Snape say something mean? Like "What are you looking at Potter?" or "Mind your business, Potter." Just... something