I have water trouble with a few mb's, cell phones, keyboards, and even a crt. All but the crt were running when the "incident" happened. After powering down and letting dry for a good long while, they all worked fine. The crt I let dry for two weeks and it worked fine.
I have also had coke spill in a running crt, that was a nice light show! And I have also washed a bunch of keyboards in the dishwasher, various brands, the ones with tactile switches faired the worst, the rubber membrane ones worked much better. I did remove the electronics before hand though on all of them.
I had a Microsoft Natural Keyboard die when my son spilled apple juice on it. Good thing I've got a couple spares, those old keyboards are the best!
I also had a hard drive that used to buzz, an electricl noise not mechanical. But if I walked by it, it would stop. I ended up putting my NAS next to it (in my rack) and it stopped buzzing. No other oddities on any of the machines in my rack so not sure what that was all about.
Oh yeah, don't bake electronics, it can damage traces, caps (not the key kind), HD platters, wire insulation, and probably a host of other things. Let the devices dry au natural for best results. A fan helps so rust doesn't set in too. And make sure to take any batteries out!