I just meant I spliced the line cord, adapters don't exist. It was an easily accessible NEMA 10-50 outlet, so we simply unplugged it when we weren't actively using it, because of the obvious fire hazard of a 16awg line cord on a 50amp breaker (which is why adapters don't exist).
Gratuitous disclaimer, don't try this at home kids...
...There was some kind of switch involved, I hope?