A few weeks back I dropped my mini ICare in a glass of water. I immediately fished it out and shook the water out of it. It autofired on me a few times which it had never done before. After an hour or so, I put it on the charger. It even autofired on the charger a few times. After a day or so it was fine. No more autofiring and it works as well as it ever did. I think it just needed to dry out some.
It was only there for a few seconds until I fished it out. I took out the battery, dried it the best I could, and put it for a few days in a container with some rice. I am still using it, so there was no damage once it dried out.