A pet peeve (or pet hate) is a minor annoyance that an individual identifies as particularly annoying to him or her, to a greater degree than others may find it. (From Wikipedia, the free encyclopedia)
Pet peeves are those things that irk us. Those things that people do or say that really annoy us for no better reason than they annoy us. Here is a list of mine, and I'm sure some of yours (in no particular order):
People who say they will do something, but then don't.
People who think they know it all. (and truly don't)
People who interrupt conversations.
Coming home from work to find dirty dishes in the sink.
Coming home from work to find that no one fed the cats.
Coming home to find that the dog ate already.
People who have to have the last word.
People who think they are entitled.
People who make the same mistakes over and over and over again and just smile.
People who own pets, who shouldn't own pets.
People who wear funny hats and look better with the funny hat than without the funny hat.
People who break rules and cry foul when caught.