Talking of aircrew, one of the toghest jobs I had was to tell a Buccaneer navigator that I'd fixed his radio problem. The reason why it was a tough job was because I had to say it with a straight face when the only fault found was that the volume had been turned all the way down.
Oh and the reason you had degraded performane in OFF mode was because it wasn't in ON mode.
Did hear one tale of a Mighty Hunter maintenance task where they were not afraid to reach out for assistance. Allegedly the trip landed somewhere in the land of the big PX, and before departing at speed for the hotels and pools the crew snagged the aircraft saying they has spilt 15 cups of tea in the galley.
Crew chief managed to get them recalled to the aircraft by entering in the F700 "fourteen cups of tea found, one cup of tea not found. Aircrew requested to carry out loose article check for missing cup of tea...."