Not really an AIBU but posting here for traffic - name changed because, well, this is weird and embarrassing and it isn't the first time it's happened and I want to know if it's ever happened to any of you:
Last night I had a really bad, very vivid, dream about my best friend who's recently had a baby, whereby she collapsed and was taken to hospital leaving me to look after her newborn - cue me wandering around her "house" looking for a loo as I needed to pee....
You can guess what's coming can't you; I dreamt I'd found a loo and proceeded to relieve myself, then woke up realising I'd ACTUALLY PEE'D 
jumped up to dash to the "real life" loo but it was too late and all the pee came gushing out *TMI WARNING** as it had collected 'inside' me
Spent the next 20 minutes cleaning myself up and changing my pj's and desperately hoping DH and DD wouldn't come into the bathroom wondering what the hell was going on....
As I said, this isn't the first time this has happened, and I've tried to mitigate it by not drinking much before bed, but when you're deep asleep, and dreaming of being on the toilet, I'm not sure there's much you can do really
Please tell me I'm not the only one this has happened to!