Mine is petty lol, but if a person is smacking or snoring next to me really loud, I tend to get pretty angry or annoyed real fast. Also screaming kids out in public, especially when their parents is standing right there not doing anything to quiet the little...never mind. Let me stop!
I could write a book on annoying humans...
None of them can drive or push shopping carts. Humans are annoying idiots that can only see themselves in the world.