Jeff last year the second buck I killed was hit high. I still got both lungs but I had a poor blood trail for the first 50 yards. The deer only went about 70 yards but it was in thick cover. It took a while, (about an hour),but I did find him. When I field dressed him there was a huge puddle of blood in his chest cavity. Because of the high hit, ( and this was a 35 yard shot, I was about 15' up), and fairly high exit, the blood pooled in the cavity created by the collapsing lungs. so it can happen. A lower exit hole for the blood to drain from would have helped considerably.