Agatha gets fed on my bathroom counter, and her food, for convenience, is kept in the cabinet over the toilet. Fish has been very interested in the cabinet for this reason, and if I open it, he will jump to the top of the toilet tank, stand on his hind legs, and try to reach out and around to the cabinet bottom shelf. He can manage that, but I've felt confident that because of the awkward angle, he would not be able to pop open the cabinet door by himself--it's held by a magnet latch. Well, either I left the cabinet door ajar, or my confidence was misplaced, because the cabinet had been opened, the plastic jug pulled out, and the food spilled. The jug lid and most of the food landed in the open toilet. The jug itself and the rest of the food landed on the floor, and both cats were busily stuffing their faces while I was wandering around the house looking for them.
The cat food has been moved to the pantry, which has a doorknob. I'm pretty sure Fish can't turn a doorknob. Yet.