Having just undergone very minor surgery - not remotely tobacco, alcohol, salt, fatty food, sugar, processed meat or cholesterol-related, disappointingly for doomsayers - I've been watching a lot of TV. And of all the things I've watched, the most gruesomely interesting scene was during Saul David's last episode of Bullets, Boots and Bandages where he gives an account of the amputation of Lord Uxbridge's leg at the Battle of Waterloo. It's not for the squeamish as he re-enacts it with a cow's leg from 18:50 on at this link.
For those don't want to (or can't) watch, it was shot to pieces by a cannon ball necessitating amputation without any anaesthetic. Uxbridge was reported to have "borne the operation well", with barely a word said.
