Last night, a fuse blew in my house whilst I was on the phone to a friend. All the lights went out. Whilst still on the phone, I was looking at the fuse box and my friend was explaining to me what to do. Some writing next to a switch told me to put the switch to "off" before handling any fuses. I did this, not knowing what it would do. It cut all the power to my house so the phone went dead.
I didn't understand the fuse box and couldn't figure out what to do, so I went across the road to my neighbour's. He came in and looked at it and then went back to his house for some fuse wire. On leaving my house, there was what I took to be a police car parked outside. On second glance, it turned out to be an ambulance. I thought it was for one of my neighbours and wondered if their children were okay. I went out of my house to see what was going on.
The ambulance driver asked if I was the householder. I said yes. She said my friend that I'd been talking to on the phone had thought I'd been electrocuted and had called for an ambulance! I explained how the switch on the fuse box had just cut the power to my whole house unexpectedly, and that I hadn't been electrocuted. She put her head back and roared with laughter and drove off.