I can only speak from my own experiences, I have filmed, and harvested some pretty good size bucks from tree stands that I have urinated from. I filmed two bucks this year, that were on the 130-135" range, both were filmed in a scrape, 10 yds. from my treestand. The first buck came in within 1 minute of me urinating from the stand. He even walked through the spot that I dampened as he was leaving. Yes, he stopped and smelled around for about 30 seconds, but never seemed alarmed. Now, if I was eating some real exotic food, I might reconsider my practices, but it has not cost me yet!