Thanks, everyone, for your kind words of support! I've never had to send any of my cameras or lenses in for repair, so I guess I've been pretty lucky.
Adam, regarding your guess that water may have gotten in through the lens somehow, I don't really know. The barrel of the lens got wet, of course, but I didn't notice any moisture inside the lens itself. I tested it on my K-20d and Kx afterwards, and it still seems to be working, thank goodness. If the lens gets ruined also, I'll really be bummed
Is that a photo of you, Rupert?
Thanks, it brightened my day considerably after parting with my K-5!