DS is a self-employed builder, currently working for a small building company renovating an old house. He was up some scaffolding, rendering (plastering) the outside of the property when he got a huge electric shock. He had moved a cable in order to render underneath it, and apparently the rubber was degraded, there was a crack, and he had touched it with wet hands (from the render). He had a dead arm. His boss phoned the electricity company and they said to phone 111, who wanted to send an ambulance. But DS drove himself to A&E where they saw him straight away and did lots of tests including a blood test. The electricity company said they were aware that the wiring needed to be upgraded - these things have a shelf life and it was on their list. They hadn't told the homeowner (who was horrified and said he never would've had the work done if he'd known) and DS's boss was unaware too. So someone (111?) said that he was very lucky he was wearing trainers rather than steel toecap boots, and was standing on wooden boards as it could've killed him. Apparently, outside the house it's a huge amperage, before it goes into a junction box and becomes 240 volts, which is why you see those warning signs on poles. So it's not a question of 'knock you off your feet' but cooking you inside, which was why they did the blood test. So he was at the hospital for several hours but sent home as OK. He is shaken up, This was two days ago. He is wondering if he should take this further. His instinct is to forget it and learn from it. TIA