People that nearly hit my nice fragile GF on the street.
Actually people that skate on the sidewalk on a busy street, stop right in front and center, turn their back to us and then suddenly turn around and start walking towards my GF, nearly hitting her and then getting suddenly startled like "WTF did you just touch my back?"
Turns out he had his iPhtoy plugged in firmly in the ears with sounds..
It reminds me of when I used to mountain bike after work in So cal. Invariably there was some tiny 110 lb chick running on remote single track at dusk with her ear buds in. I call out repeatedly to pass and she screamed in surprise when I go by, cussing at me. Good thing I wasn't a mountian lion durring that peak hunting time... or some guy with bad intent.
Listen to your tunes, just leave one ear without the ear bud so you have some awareness, I won't shed a tear for you if you end up in a shallow grave or as a week long snack for a cougar if you took no responsibility for your own safety.

