Been there and done that. The first time I went to Ohio hunting a large deer pop out on the other side of the hill just before dark. I scoped the head and didnt see horns. Placed the crosshairs behind the shoulder and fired. The deer ran about 20 yards and crashed. When I got to it, it had already gotten dark. When my flashlight shined acrossed its neck I could see it wasnt a does neck. Raised its head up and there was a little 3pt rack. I was disgusted with myself for shooting a small buck and had to use the only buck tag that you get in Ohio. The rack was so short the ears covered it up. Sometimes it happens, not fun when it does though.