Promising review:
"Our cat is fat. Her life is pretty much driven by food and the only way we've been able to keep her at a moderately sustainable weight is by giving her healthy food she hates and this pet feeder. Every time we come back from a trip, there are a few more claw and bite marks on it, but it holds strong. She's even tried to sit on it, but it's done nothing more than presumably horrify it a little.