I was asleep and dreaming that I was bursting for a piss. I was walking through a long hallway with doors on either side, desperately trying the handles of all the doors, searching for a toilet, but they were all locked. I woke up in the middle of trying one of the doors and I was on the verge of actually pissing myself, but luckily I was able to get to the toilet in real life in time. I'm quite positive that if I'd found a toilet in my dream I'd've had a wet dream of the bad variety.