1. serving people coffee when I want to be drinking coffee
  2. serving people lunch food when I want to be eating my lunch
  3. serving people who are consistently rude
    few & far between, but they exist
  4. serving people who are persnickety about their orders and make you do lots of specific things and then are still clearly not pleased w the result
    "Can you toast that extra?" "Oh I can't eat that, can you toast a different one?"