I used one years ago and had a big buck take off for the hills...I mistakenly placed him facing towards the thicket and as I was climbing into my stand in pitch black dark I heard a deer go crashing through the thicket, it sounded like a kid running down a picket fence dragging a stick...except it was antlers going through saplings etc. I've never used one again. If you place it facing into the area you expect the deer to come from...well the deer see it and think that it is staring in their direction because of danger behind them.