Totally tangentially, it bothers me that so many people walk around talking on their cell phones in public places at the top of their lungs, as if I want to listen to them all the time.

I hate that embarrassing moment when you realise that the person next to you on the street that you just said "Pardon ?" to was not talking to you, but to their concealed cell phone. At that point you know they are just about to turn round and look at you as if you're mad...

Another bizarre thing is those young women that you see in supermarkets who manage to carry on a loud, thirty minute conversation with their girl friend while frantically shopping with their one free hand.