Here is my experience with human urine. 2002 in Southern Illinois we were hit with about 4+ inches of snow, then sleet, and more snow overnight. Knowing that the deer was probably going to hold up after the storm I went out anyways to my usual spot on the government land in Pope County. I went in and sat all day. When I packed up and was heading out I stopped half way to my truck and couldn't stand it any longer. I heard too pissin in the woods ain't good. I did the deed and walked on to my truck. The only tracks going in and out was what I made. The next morning I went back out to the same spot and there were deer tracks every where I had been the afternoon before and piss spots all around mine. So, I'd say it doesn't matter in my opinion.