And they swear on their mothers life they replaced them back exactly as they were.loads of 'em mate. love it. £50 for sorting 3 cables out.
On a lighter note: when I was an apprentice back in the 70's they introduced twin red +e 1.5mm for wiring switch wires from the light. We were wiring new flats on bonus (paid 11 hours for a first fix) We could knock em out in 8 hours easily (6 if we really grafted and no breaks) It was a good earner but always a rush.
I didn't take note of which coil was twin red and wired the entire lighting circuit in it. I didn't find out until the second fix (doh)
Didn't make a bonus on the second fix lol