I flooded my Panny ZS3 after only the first battery change. I thought about stuffing it with tampons, but thought, who am I kidding, I lube the o-ring, make sure it is done away from any dust, etc. But apparently something landed on the oring in the process of opening/closing the housing. I noticed dampness inside the housing and thought, condensation...there goes the shots for this dive, but as the dive progressed, theh screen wasn't on but the LEDs were, and then noticed a small pool of water. Since the panny has such a fat lens port, I had the housing face down so excess water could pool there and not cause further damage to the camear, which already has its lens retracted. Seems that the display is fried, but the rest of the camera is still good. Good thing the camera is a couple of years old, since I can get a used one for dirt cheap, or try to replace the display for even cheaper. When I initially got the housing, I saw a single o-ring and thought this might be trouble...it turned out to be. The few Canon housing I saw also has a single oring. My Oly C5050's housing has double oring and it never leaked in all the time I used it.