"Operator bodges" - I refrained from doing so with the frequent casualty, the General Illumination input connector, on a T2 in fact. The first person it would've bitten would've been me, since the head had to be detached to get in to the boozer where it was, and then again to get out.
This was also the occasion where a collector* arrived while the repair was in progress, and even though the backbox was open, the display lying downwards on the playfield glass, with a large vacant gap edged with loose connectors, she went over and switched it on. Why did she think I'd said 'I've got the coin meters written down'?. Even 'It won't work with a circuit board missing' gained no response, so after she'd gone off in a huff (and her f**d broomstick) I 'phoned the numbers in.
* not the kind of collector usually referred to nowadays, but someone who'd drive around a selection of the operator's locations each working day, tallying the takings and changing jukebox CD's or 7" records (which were still just about viable then).