The answer is just one, and either this cleaner gets around a lot, or a lot of cleaners just need a free power point.
I thought I’d ask this question on Twitter to see what interesting stories people had to share:
Worth reading the entire thread, but it turns out unknowing cleaners seem to have cause a lot of outages!
I’ll let the responses speak for themselves:
(OK that last one was not really a cleaner, but involved cleaning!)
I’d be hoping these incidents happened a while ago, but in reality it’s a good demonstration of how things can happen that you really didn’t plan for. It’s also a good argument for having your important gear in a secure room!