I have used this automatic feeder for several years now, and I think it's a real help in keeping my cat from being a hefer.I have an intelligent cat. He has figured out how to open latched food storage containers, cabinets, and even doors that have child locks on them. He's very persistent about getting to eat. Before I had this feeder, he would wake me at sunrise to be fed and would pester me until I fed him again that evening.This automatic feeder has been great. He rarely bugs me about feeding him anymore. He hasn't figured out that he can turn it, but I also am very careful that he does not see me open it and fill it. He is very observant, how do you think he figured out how to open the locked doors? It would be even better if there was more resistence to being able to turn it, but make no mistake it's not something you can just bump and it will move. Just make sure that when the door is closed that only one compartment is visible.