In 18th to early 19th century US/England, body snatching aka grave robbing was a common activity of medical students. And in England, it was a profession. As was guarding the freshly buried against such. When New York Hospital and Columbia didn't limit themselves to blacks, you got the 1788 Doctors' Riot and several deaths. A riot at Yale in 1824.

I wonder if you could teach history by emphasizing "surprises for the time traveler"?