My pet peeves:
1. People clipping their nails on the subway.
2. When people honk in a car out of frustration in their car, instead of for safety.
3. When people leave garbage in the sink, instead of throwing it away.
4. Using dog ears as a book mark instead of a real book mark.
I could go on, but I think pet peeves are also a way of resisting reality. Part of that story we tell that if the world was just so, then all would be right with the world; That if people would just erase the pet peeves from the world, all would be good. It's called externalizing and resisting reality.