Re: This story is very relevant
My mother works in a school where the servers where on UPS's along with a few semi critical pc's (like the head teachers..) and local contractors managed to tear through the buried power cables outside... one big bang later and no UPS's... or servers as it turned out as the UPS's where massively underspecced for the job (yet of course cost 2 times as much as a better one I could have picked up online) and about £10,000 of computer equipment got toasted.
Lots of shouting on that one...
I've also had the pleasure of witnessing a fibre upgrade (my old workplace had 4 fibre cables into the premises for just this sort of switch over) and lots of head scratching as to why it wasn't working (turns out they hadn't turned on the switch at the exchange end. Fancy that...).
And don't even get me started on dealing with the IT support contractors at the place I work at now. Getting a technical answer out of them that isn't condescending, wrong or avoiding answering the bloody question is like getting blood from a stone (or data... both applies I suppose).