When I first started Archery hunting.....about 4 years ago, I had a doe bust me...I was sitting at the base of a tree and she snuck up behind me...anyways, she ran off then turned around and started coming around the other side of the tree...the tree was huge, so she couldn't see me, so I pulled by bow back and waited for her to come around the other side, she finally came around and was only about 10yds. away, I released and in less than a second I watched her as she jumped straight up and I seen the arrow pass under her chest and into the ground as she ran off....I was completely amazed. It was my first year bowhunting, I was around 19 or 20 yrs. old and I didn't have any silencers or anything on my bow and it was pretty loud and it only shot about 180-200fps. That was the only time that happened but I couldn't believe a deer was able to jump out of the way at 10yds. Oh well, I've learned alot since then, lol.