There must be a million dangerous bodge stories out there.
I was told by a TV service engineer that many years ago he had gone to attend to a faulty monochrome TV in someone's home. When he went to remove the back cover he discovered that there were 3 leads to the back of the set, the mains lead, the aerial lead and a third twin lead that disappeared behind the curtains.
Sitting on the window sill was a large finned metal rectifier! The previous "engineer" couldn't get the large replacement rectifier inside the set (the original was a contact cooled type).
The safety advice offered at the time had been "don't touch this when the set is switched on".
