I rewatched Mythbusters recently. It's pretty disturbing, especially in the early seasons, how often they use actual human remains for what is essentially light entertainment. Like, they'll destroy an actual human skull for shits and giggles. They had disproved the myth on setting off an airbag with a slim jim and firing it into the head of a would be car jacker, but still had to replicate the results, so just shot a slim jim into an actual human skull, cheering and laughing as it's decimated. That was an actual person's skull. How they sourced it, and where the source acquired it, who knows. I'm fairly certain there is a family somewhere though that would be mortified.