Heh, funny story. First time I ever used one, I set it up just off a main trail on a hill side in New York. My tree stand looking down at it, fairly steep both up and down hill. The trail ran right along the middle of the hill, with my tree on the downward side. So my stand was 35 feet up, but only 18 feet above the trail because of the steepness. .
That afternoon, I'm nestled in, all excited. Sure enough, here comes a couple of does and a small 6 point. All slowly walking and feeding along the way. It was super quiet. When they got about 10 feet from the decoy, the lead doe saw it and freaked out, letting out a loud blow and jumping straight into the air. The other two then panicked, and all three fell down the damn hill! Rolling and tossing all the way, what a racket! So funny, I never have seen anything like it since.