We got a couple for our boys but one of them started tipping the feeders over to knock food out. We built some boxes to enclose the feeders and prevent this, and then the little shit learned he can jostle food loose by getting his paw up into the dispenser area and manhandling the impeller. The noise this makes sounds very similar to someone attempting to break into our home, and as a result we have switched back to manual feeding, and will just use the automatic feeders when we’re planning to be away overnight.