Sleeping on the roof of a youth hostel was half the fun. Although one night I kipped down on an old mattress on the roof a youth hostel in the Old City of Jerusalem. When I woke up in the morning I moved the pillow there was a used tampon under it.
I got a locals bus from Aswan, which is right down south in Egypt, to Hurghada up on the Red Sea coast when I was backpacking on another occasion. When we got to Hurghada we went to retrieve our rucksacks from the compartment under the bus via the coaches side panels, I slung my rucksack on my back. It was soaking wet and I was getting wet too. I took it off and what had happened was the toilet on the bus had leaked piss and shit all over my bag for the previous 8 hours.