I've never tried the pee bottle - it's never been a "wise idea" IMHO, simply cuz I have no hand...er... pee... coordination at night. I might stumble 10 yards from my tent. Just don't pee on your friends tent. I don't think bears are like dogs where they have to run over, smell it, then pee on it too.
Yeah, and don't accidentally pee on the bear rumaging around your friends tent.