Once I was working at an institution for adults with cognitive disabilities. We were coming back from an outing in a bus. This one guy had to pee. He said he couldn't wait. I asked the bus driver to pull over. He said there was no place to pull over. To make a long story short - to late. I found a cup for him to pee in, but he really had a big bladder and the cup was going to fill over. I pulled down the window, to empty the cup quickly then let him refill it. I threw the piss out the window. The problem was a guy two rows behind us had his window open. It swooped back in and splattered him in the face. Luckily he was pretty out of it, and just wiped it off his face and went back to staring into space.