This might seem crazy, but some people think that you can use human urine to attract deer.
Since deer view humans as predators it would seem likely that human urine would scare off deer. However, some people think that deer are attracted to human urine. In the video below from Team Radical human urine was applied to a scrape and then a trail camera was set up to see what happens. Surprisingly the deer seemed to be attracted to the human urine as much as they would be to deer urine.
This is obviously not a very scientific test, but it raises a number or interesting questions. Are the deer simply curious, or is there something else going on?