There's a thin line between playing with your dog and torturing your dog psychologically. This Autofetch Motion Pet Ball crosses that line.

It's a ball for your dog to play with. It's got a hole that you can put treats or dog food in, and it has a gyroscope inside to keep it rolling around all over the place. Your dog tries desperately to get at the food it can smell inside, but this ball just endlessly rolls around away from it. And at the end, your dog hangs itself. What fun!

Chinavasion via Gadget Lab