Had it happen to me
Working on helpdesk, call came in, stuff not working, found out it was power outage on top floor (apparently there was a kettle with a dodgy plug and anytime anyone boiled for a cuppa there was a chance it'd trip all the sockets on that floor).
The person ringing me was one of the most IT illiterate people I've ever met and she often had issues of a similar calibre. But yes, complaining about her PC when the power was off took the cake.