I think the one thing that really pisses me off is when people are just plain mean; however the meanest ones are those that abuse other people. I find them to be cowards. But on the petty side of life I hate it when your in line somewhere or you are in a resturant and you can hear someones full conversation while they are on the phone. And that they have to have everyone else on the conversation especially in a resturant. Hello I am trying to eat in peace here, have some consideration for others around you. And by the way tip the waiters well they deserve it they do work hard and they have to deal with moody hungery unsatisfied people.