I love Scooby Doo - the old school ones before Scrappy. I don't know - I think it s still cool. But I like that stuff!!! I took an osteology class and our end project was we had to piece together a skeleton (real bones) found on some dig and tell whether it was male/female, what race, and any signs of trauma or chronic disease. It was cool.
I think what would be creepy is if they stole dogs and killed them for the bones. They probably buy the carcasses from animal control places, maybe from places that are still using animals for testing, or donated from private sources.