Before antiseptic procedures were introduced into surgical practice, a bone fracture might require amputation.
Without anaesthesia that amputation would have to be swift. St Thomas' surgeons taught students to give mercy to the patient by removing the limb as quickly as possible.
Seize this one off opportunity to visit the Old Operating Theatre Museum and Herb Garret after-hours.
See the museum's collection housed in the attic space originally used by the Apothecaries and witness a Victorian surgical demonstration by gaslight on the hour every hour until doors close.
The later you come the darker it will be as the theatre has a skylight. The amputation kit awaits, will you survive?!