Apropos of nothing in particular, I'm reminded of my first deep sea trip, as a very young Engineer Cadet, back in early 1981.
We had sailed to the Mississippi form Lisbon, where I had joined the ship, and we were going to load grain at a terminal a few miles past New Orleans, but would be stopping just before The Big Easy for a Coast Guard inspection and a charterers' Surveyor to inspect our cargo holds to ensure that we were indeed ready to carry the cargo. So, a run ashore was arranged - and to spice it up, it was the first Friday after Mardi Gras, so Bourbon Street was REALLY alive - but I digress...
Anyway, it had been decided, on the voyage across the Atlantic, that a new Music Centre would be purchased for the Officers' Bar, using the bar profits. The Second Engineer and Electrician duly sallied forth to purchase a suitable machine.
Everyone was in the bar to witness the grand switch on. A suitable tape was produced to be the first music to blast out and inserted ready to start, everyone had made sure that their glasses were charged with suitable refreshment and the Electrician switched the thing on...
There was a momentary ear-splitting howl from the speakers, followed by a loud bang from the machine and a plume of thick, acrid smoke vented from the ventilation slots on the case...
Yep, these heroes had forgotten the minor detail of the USA being 120V, and our ship was standard 220-230V...and had therefore not picked up a suitable step-down transformer when they bought the beast...
It took them a VERY long time to live that one down...