The problem with having somewhat smart cats is that they also use their smarts to learn the things you don't want them to.
@jasonsteakums Our older cat has learned (from the younger one) that water from the tub faucet is awesome. It was really short sighted of the little guy: used to be when they were fighting in the tub turning on the faucet would drive away the older one while the younger one got a refreshing drink.
Also now we get twice as many whiny (but adorable) requests to turn the tap on.