[bionicmerlin]

I remember during the 70s there was a public information program of a man using a metal drill and the wires held in a cooker socket with matches. As he’s working the earth wire pulled out and touches the live wire ,thus making his drill live and electrocutes him.
I believe as there was quite a few round pin plugs about people couldn’t be bothered to keep changing plugs to suit the socket. Also no 30ma RCDs in them days Andy