Sparkie keeps me on my toes. He absolutely MUST go outside and runs on an adventure immediately after he eats a little nibble or 2. Then he wants in after a bit, and is ready for more food. Thing is my other cat Rocket is overweight, so I have to take the food away since he is on a diet. Its a cycle i repeat abohut 5-10 times every meal. I think it improves my metabolism, I don't get to sit down and be lazy and eat. Sparkie has me trained.