A few months ago, I had the same thing happen to me right after I finished flushing. It slid off the belt, case and all - plop - I reached in as fast as I could, snatched it up, wrapped it in paper towels and then dried the phone. After a thorough cleaning I tried ot - and voila, it worked, and is still working.

"Life's a box of chocolates, Forrest. You never know what you're gonna get."