So we had an iPod Shuffle that broke because of "sweat" getting into it = water damage. We we're a little pissed since we workout with it and obviously sweat when working out...and it still triggered the water sensor. Took it to the Apple store and a very nice employee let us know it triggered the sensors...but she was going to exchange it for a new one. Did they have to do that? No. But they did and I thought that was awesome since it wasn't a manufacturers defect.