Rick, in the "Gung Ho! Zero Tolerance! Kill the Boaters!" days the USCG did indeed go nuts about "secured" discharges. I think it has been a good five years since one of the Commandants finally issued an edict telling his people that "secured" means "secured" and that straps, locks, tie-wraps, armed guards (always keep a spare eunich to secure the for'd harem, right?) all fulfill the requirement of "secured".
We were going to install a simple key lock on the macerator power
line so that it could be physically locked out and secured, but then realized while rewiring the boat that by putting the macerator on a fuse instead of a breaker, we could "secure" it by simply keeping the fuse in a drawer.
KISS principle, right?<G?>