Haha, oh man I can imagine... Once I was lucky enough to sit behind a girl with very thick and soft, slightly curled hair she had dyed a shade of violet in a train. I had seen her a few times before and sat "randomly" as unsuspicious as possible behind her and I was rewarded with her mane overflowing the seat to the left, trapped in and filling the space between seat and window. That way I could place my hand on my knee and her hair would brush over my hand with every slight movement. I like to think she noticed me and how I tried to stay composed, because she played with her hair all the time and rearranged it multiple times so even more came flowing my direction. Sadly it wasn't free flowing in all it's glory and after she departed the train it was like a dream that ended, but I enjoyed every second of it, still remembering very vividly even after 10 years.