I have seen it one time, A buddy and i were bowhunting the same area, One evening he made a shot on a basket racked 8pt and said the hit looked good , had a decent blood trail but not the best i've seen. After awhile it petered out and we finally gave up. Two weeks later one section south, i shot the same buck and watched it go down, I didn't know it was the same buck till my buddy came to help drag it out, that's when he said it was the same buck. He found the perfect scar of his razorback 5 broadhead shaped like a star, a passthrough nonethe less, but obviously not a killing shot. I don't think there is much room between the lungs and spine, but it can happen. HH