the battery banks are nearly dead and you find out that you only have half a tank of diesel left when you thought you had two.. ;) Instant Brown trouser job, that.

we had one breaker thatwouldn't stay set once after one spike - I had to hire a sparky to just sit there 24/7 to reset it for 4 days until I could get a change window to replace it.

thanks for the movie, the UPS beeping had me in the corner whimpering with flashbacks... "the horror, the horror.."