As a lowly basic, I was informed of a story about a AEM who had cleaned out a Lynx Fuel Tank with a Liferaft conicle rubber bung borrowed from the SE department.
Said AEM dropped the bung inside the tank and went fetched another to finish de-clogging the rubber fuel tank.
4 yrs later the Lynx ditched with loss of crew.
The said AEM was a civvy by then, but got a knock at the door from the Naval Provost and a couple of Civvy Coppers with the line "AEM_____ is this your signature....."
Dunno if the story was a scare story to ensure you either did jobs correctly or had a "Cant catch me sig"
to prevent any visits at a later date....