Every single fucking time I'm wearing headphones (which isn't even vey often), someone decides they need to talk to me. It's never anything remotely important, and they always just start talking as if I can hear them perfectly. I can't hear shit. I don't want to hear shit. That's why I'm wearing headphones.
EDIT: Since posting this, Mrs. E did this to me twice, and then got mad at me for asking her to repeat herself.
EDIT again: 3 times.