Only ever had this kind of thing happen to me in school, when I'd sit behind girls with long hair and it would fall back onto my desk.
More in line with the pic though, once during my senior year of HS, we were coming back from a field trip and I was sitting with a female friend of mine.
This girl in our class was in the seat in front of us, and did like the picture and draped her hair over the seat. Gorgeous, silky, straight black hair that reached her hips. The girl sitting next to her kinda glanced back and gave me and my friend a playful look, like they dumped her hair back there to mess with us.
So I'm trying desperately not to react, while my friend reached out and started playing with her hair, fanning it out, braiding it, running her fingers through it. She kept saying stuff like, "God, ___, your hair is gorgeous! It's so soft and smooth!"
This went on for roughly half an hour. Needless to say it was a very painful ride back haha.