I wish I could remember where I read the study, but it was very interesting. They made 3 scapes along the same trail, all within a few yards of each other. One they put human urine, another WD-40, and another deer urine. All 3 scrapes received the same amount of traffic, and deer spent as much time on one as another. I've had many bucks and does sniffin' around my tree after I've taken a leak. I'm super fanatical about my scent control and using the wind, but I don't hesitate to take a wiz from the stand.