Plus I keep an empty bottle close at hand to pee into during the night, so I don't have to leave the tent. Taking a leak in freezing temps,after crawling out of a warm bag is no fun at all.
When I went to arctic survival school, I built a trench and sump into the floor for this purpose. I couldn't imagine opening my warm-ish snow shelter just to go out and pee.
It was 25 F inside the snow shelter and -42F outside, if I recall correctly.
Also, when I lived in Alaska and NP3 was just starting to be used on rifles, a few friends had their rifles coated and stoped lubing the rifles thereafter with no ill consequences that I know if of.
The coldest I've hunted in was -32F, hunting for 'bou outside of TOK. It was attention-getting. I'll never do that again on purpose.
“Live free or die. Death is not the worst of evils.” - General John Stark.
