A similar thing happened to me Saturday evening. I had a doe come in from behind me and I never heard her until she started stomping. Once she finally settled down she started working her way from behind me right towards my left. I stood up and, of course, my stand creeked and she stopped. Once she settled back down and kept going I came to full draw. She stepped in the opening that I wanted her to and let it fly. The shot was true until the end. When I got down to investigate, I found my arrow...well most of it. The back 6 inches was gone. It deflected off of a limb/branch. Ended up my shot was not as clear as I could see. Like you, I'm glad it was a clean miss instead of an injured deer.