I just love the gun store commandos that talk about bird shot acting like "a solid chunk of lead" at close range. Here we have a man wearing waders who takes a hit at a distance of only 10 feet and his injuries are minor. So much for all that garbage about the performance of birdshot as a close-range, self-defense load!
IIRC, ballistic gelatin does not represent the average density of a human body. It most closely represents muscle tissue. I remember reading some comments from folks in the industry stating the muscle it most closely resembles that group of muscles you sit on!! So there you have it. Shot in the "ballistic gelatin" by man's best friend!