Hi! Like you, I often wonder what's going on in Groucho's mind. Not too long ago, we were using one of those food and water dishes that are both in one. We started finding the dish all over the place and couldn't figure out how it got to where it was. Turns out that Groucho figured out how to move it. If he moved it to the same spot all the time, we would have put it there but it was in a different location all the time. I talked to a few cat owners at work in an attempt to figure out why he was doing this. Someone suggested he was doing it because he could (makes sense). And since Groucho figured it out all by himself, he wanted us to be proud of his accomplishment. Well, we got heavier separate dishes for him and even though he tried, his dishes stay put. Wish I had an answer for you but kittys will do whatever they seem to think is fun. Maybe a change of water supply source is the solution?