Well for the second time I've washed a flash drive. The first flash drive came through ok, although my level of confidence in it's reliability dropped significantly. This drive seems to be sealed much better. We shall see later today how it faired. This has got to happen more often than we'd think.
UPDATE: The drive seems to have made it OK. Both drives are made by SanDisk. One is the Cruzer Micro and the other a Cruzer Mini. The only issue I've had is that the caps don't seem to fit very well now... too loose.
Be careful to make sure that ALL moisture is removed from the drive. Water can real a do job on your device by causing corrosion between the legs on the SMT components. You can try and remove by flushing with rubbing alcohol and placing the USB drive in a container of uncooked rice.