I'm beginning to think that some muppet forgot to switch it on...
Or, to be minuted in a meeting next week:
"So why didn't it get switched on?"
"Julie does that"
"So why didn't Julie do that?"
"Well, it was a Thursday, she only works on Tuesdays and Wednesdays; she used to work on Tuesdays and Thursdays, so this was on her tasks list"
"Couldn't somebody else do it?"
"No, it's Julie's job"