Martin your story reminds me of one funny incident - which could have been disastrous.......
A Vampire T11 came back after a run to the bombing range with a hung up WW2 type 3" rocket with a 50lb concrete practice warhead - aircraft was left in the revetments facing the length of the runway slightly to one side of it as per regulations - an armourer climbed underneath to check the connections - sure enough what was called a pigtail lead had come loose . He reconnected it. Despite all rules which prevent other trades from working on any aircraft while armourers are busy on it an air electrician climbed into the cockpit and decided to test the firing circuit- as he did so said rocket took off........armourer leapt for safety.........A few unkind words were said..........
The rocket ran the length of the runway - across a main highway (which led to the PM's farm) and landed amidst a herd of dairy cows a few miles away............ fortunately no one or any animal was hurt BUT the lady farmer claimed compensation from the Air Force as as her cows did not give milk for a week.........

Martin ,it was an ancient TIG welder the size of a small container but did the most incredible aluminium welds (or was that me🤣🤣) it was replaced in the late 80s when they rewired the workshop . The bookies shop was happy at least they could watch the horse racing without interference on the telly .

Marky,
At least it had a warning sign on it.

Martin555.

Sorry should have said not many if any Students were fitted with pacemakers,on AC the bookies shop across the roads telly used to go haywire 🤣🤣🤣

We used to have an old TIG welder at the college that had a warning on it that anyone fitted with a pace maker was not to use it in either DC Negative or AC

Hi Red,
Talking about Pacemakers, when i was working in the shipyard i had to test some cables using a Megga tester.
Unknown to me a fellow electrician was playing with the other end of the cable so when i pushed the button he promptly started jumping about and then collapsed to the floor.
He was then taken to Hospital.
It was some time later i found out that he had a Pacemaker fitted.

The daft bit was he knew that i was testing that cable.

Martin555.