I'm playing a little warcrack in the morning, and I hear a big explosion outside, the click of the GFI tripping in my kitchen, and the sight of one of my pc's going down, all at the same time.
I reset the GFI, turn back on the pc that got kilt, and walk over to starbucks for some morning chocolate. Their pc-based sales system was all locked up, so I got my drink for free.
The power didn't go off, and so far, the stuff that wasn't on the GFI circuit, seems to have been protected by their power strips/whatnot.
I wandered the neighborhood a little, but didn't see any smoking pole-transformers.