urine breaks down into the same pheremone as all other animals after about an hour so it makes no difference...thats why it attracts bucks when you pee in a scrape...sorry if im bein vulgar but i have actually peed of the side of my stand ha...i had deer in the field and didnt have a bottle...none of them spooked! * i use scents every time i hunt but i never hang it right off the ground i always hang it somewhere on the stand or tree im hunting in that way it acts as a cover scent and an attractant. doe in estrous is much stronger than the scent of the human body..at least i think so!