Way back when I was a student living in an old rented house in London, I went into the bathroom to find the bulb had blown. It was a pull cord switch, so I did

Way back when I was a student living in an old rented house in London, I went into the bathroom to find the bulb had blown. It was a pull cord switch, so I didn't know if it was on or off, but knew I wouldn't be so stupid as to stick my fingers in the bulb holder while changing the bulb, so no big deal if it was still live. Standing barefoot on the enamelled metal bath, I bent the cable so I could see how to screw the bulb in, and the ancient insulation on the cable split. I came to, lying in the bath with a huge bump on the back of my head. I knew exactly which path the current had taken because it hurt all down the right side of my body, but fortunately it mostly went down that side, not across my chest. So much for British bathrooms having pull-cord switches so you can't electrocute yourself.