They also used it on my Uni interview at Comp Sci/Cybernetics Reading.  About the only part of that sodding course that did make sense, as it didn't involve maths

Speaking of generators/UPS; our state of the art building's generators kicked in last week (not sure why - don't think it was a power cut), and the UPS distribution board for one of the main IT halls decided to blow up and catch fire, resulting in total loss of power for 4 hours.

Unprovidable Power Service seems appropriate here!