Apparently, this morning one of the sprinklers in the front yard catastrophically exploded, sending a torrent of water at just the right angle to flood my shop. When I walked in this afternoon, the floor was damp (at least the standing water went down the drain) but it doesn't look like anything else was hit.
Luckily, the project I'm about to finish, a nice custom bookcase for my oldest daughter, survived because I put it up on sawhorses to work on it last night. Had I waited until today like I was thinking of doing, it would have been toast.
I guess fate smiles on you every now and then. :)