There was one time where I really wished I had had a cell phone with video capabilities (and the presence of mind to use it) about two years ago. I was riding home on a train together with my brother from watching a nice win of the football team we support and we were sitting parallel to the direction of the train so we were looking straight out of the big side window almost as if it were a giant tv screen.
While the train was in a station we watched a guy and his girlfriend/wife try to reach our train before it leaves the station by crossing the rails on the other side, and he was clearly in a hurry. Problem just was that there was a train coming on the other rails too and although he barely made it, his girlfriend stayed behind which made him quite angry. And angry was also the driver of the other train who leaned out of his window gesticulating wildly (and I guess screaming, although we couldn't hear it) at the guy while slowly driving through the station, I almost thought they were going to throw punches. Then when when the other train had left, his girlfriend finally crossed the rails too, but of course at that point it was just too late and in the exact moment he pressed the button to open the door, our train left which made him hilariously throw the bouquet he was holding on the ground in frustration. (idiot should've thought of holding the door open instead of arguing with the driver of the train that almost killed him).
It was like classic slapstick comedy only real life, and of course the whole time this happened my brother and I were laughing out loud at the douche. Good times.