Don't you hate it when you're just starting to fall asleep and the phone rings. So you answer it and it ends up being some lady who thinks she's calling her husband only to find out that she hears a female voice. And she naturally assumes this voice of yours is that of her husband's mistress. So then she hangs up in a fury leaving you confused, but you're too tired to care so you fall back asleep. But then there's a knock on the door and it's the lady from the previous phone call with a knife in her hand vowing revenge on the tramp that's ruining her marriage. And so you don't answer the door but you peek out of the curtains to see what this crazy person is doing and wondering if you should be clutching a knife instead of the phone. But then she sees you and starts banging on the window and it breaks and you're in such a panic that you step on a piece of the glass. So you're on the floor trying to get it out of your foot when she climbs through the window and hovers over you with a rather large knife threatening your very existance...

That and when people start sentences with conjunctions. That sure is annoying.