phat
I only got my buddy to carry a pee bottle on one trip. The next day it was frozen solid. He wanted to carry out the bottle so we actually had to put it in boiling water for an hour to thaw it out.
POUR THE PEE OUT THE DOOR OF YOUR TENT WHILE ITS STILL HOT!
GEEZ...
Mouse, I heard that an all female climbing expedition on Mt Everest had a funnel/tube thingy in their tent but the outlet froze one night. Sadly on a photo op one of the women leaned back in her harness for her picture and she wasn't tied in. I think they called off the trip.