My personal one was when I went on Year 8 Camp and we were doing that one shelter building activity with random branches in the forest. It was raining and everything was slippery. My group of two of my friends were building a very mediocre shelter and we leaned some branches against another branch arranged horizontally and supported by two other trees. I was standing near one of the branches that was leaning against that horizontal branch when BONK it hit me in the head. I swore really loudly and got scolded by the camp instructor. Not to mention I'd also been hit in the legs like three times. The End.
One person got upset because I passed a basketball at her, she failed to catch it, and it hit her (not in the face. Apparently it was a stomach, but it wasn't). I said sorry a bunch of times and she started swearing at me.
I went to a camp with horrible 'fried rice', with raw rice and raw vegetables...
In fact, I returned from a camp yesterday... the bus driver was deaf, and blasted extremely loud music for the 4 hour drive back to school... people were shouting for him to turn it down (guess what, it didn't really work...). When the bus driver did turn the music down, there'd be 5-10 minutes of 'peace', and then that one annoying person would tell the bus driver to turn it up 'a bit'...