Back in the '60s, I sailed in one of the 6 tank landing craft, Mk 8, powered by 4 Paxman 12 TPM engines. We had done a 3 month stint on the run to St Kilda (a rock in the middle of the Atlantic!) and arrived back in the home base of Portsmouth on a Friday morning with 2 main engines and one genny down. We looked forward to a weekend off, then turn to on Monday tearing the machinery apart. Friday afternoon, word came aboard that the CO, Southern Command was visiting the Regiment on Monday and wanted to tour an LCT.......and we were the only one in port!
So the Chief, a guy I greatly admired, set a weekend schedule with paint and polish and by Monday, everything in the machiney spaces gleamed with new paint, every copper pipe sparkled, burnished brightly. When the General came aboard, he admired the shiny stuff, but asked "does it work?"
The Chief bristled, stood up to his full 5' 6" and said "Second, start an engine!" Diesel Des reached over to the nearest engine (which worked, of course, it had all been rehearsed) and started it, revving it loudly. This was well before ear defenders and a screaming 12 cylinder Paxman is quite loud. The General was duly impressed, nodded, then left the engine room.
The Chief gave us the next day off, then we turned to ripping the machinery apart. Moral of the story is really an Army adage, "Bullshit baffles brains!"
Discourage incest, ban country "music".