Yu Lee's dad was moving an engine from one car to another. To make life easier, he'd sawn the engine in half so that it could be lifted in two parts.

I moved the engine over, one half at a time, and as I moved part of it some of the wires hanging out of it made contact and an electric motor inside started spinning. I remember wondering how this was possible as it wasn't connected to a battery.

When I'd put the engine in the other car, someone was explaining to me how the blue wire was the 'bank account wire', and that it was used to charge someone's bank account automatically.