Sorry you’ve had to deal with grr emails, Fuzzy, that sucks.
Shamefully I think I’ve been kind of passive aggressive before; it wasn’t emails but I was trying to talk to a “friend” on a messaging app (e.g. she said she was at work one morning so didn’t want to start a conversation, but I asked why she couldn’t just put up an afk type message/temp blocked me when I came on, because I wouldn’t have bothered her if she had, then neither of us would have got annoyed. She was ok talking to her dad/other friend while at work that day, but not me. Not the last time her hypocrisy surprised me, either).
To be honest, these days I’d probably just ignore and block them unless it was important and needed to be dealt with.