We hunt in an area where the hills are really steep and there are ravines that are straight up and down at the bottom. I've had two deer run just far enough to get stuck at the bottom of a ravine.They didn't run that far, but they got a run at it and ended up at the bottom. I had one roll down the hill towards me kicking and I had to jump up from my tree seat because he landed where my feet had been. He was dead when he got there.