Here's a particular thing that annoys me about some smokers:
I CAN'T STAND PEOPLE WHO SMOKE IN QUEUE LINES FOR RIDES! If you can't go half an hour without smoking, you've got a seriously bad addiction! I don't care if you smoke, you can go give yourself cancer in private! They don't have to make everyone else suffer from second hand smoke! You know what pisses me off even more? When somebody asks them to PUT IT OUT they dont.