I'd better not answer as I already know! lol

The old lead incoming cable snapped?

No worse sadly they had a water leak underground the builder then chopped the floor with a stihl saw and went through the mains cable as it was only 10mm deep!

More suitable to Israel than to the UK...

I had one like that. Newly renovated shop, 1st day new tenant in. "i was installing shelving and the lighting suddenly went out". Presenting a drill with a melted ball of metal on the tip of the drill bit like on an arc welder electrode. He drilled precisely vertically below the center of the DB into the 4x10mm2 feeder, protected by 63A fuses upstream

My uncle Keith, while putting a phone socket in my auntie Pats house, (now my house), drilled into a lead gas pipe without realising! it constantly filled the cavity and, luckily escaped to the air outside for 3 years until a gas fitter changing the meter noticed it!

Gas bills anyone ?

When I had my ‘smart’ gas metre fitted, I got them to check it had been long disconnected!, it was thankfully, the lead pipe ran upstairs, then down into the living room, it was the old ‘gas poker’ feed, a device used to light a coal fire easier back in the 60s!