A guy came up with a clever system to earn their own cat food at home
Bashny.Net
Bell Millen decided that domestic cats are too easy to get food, so you need to come up with something a little more complicated. At home they do not have to hunt or something tense, so he built a special machine that changes the situation.
His cat named Monkey must put the ball in the hole, and then she gets her portion of food. But of course, Ben took a long time to train a cat to it.