At first I was going to make some reference to my cat bringing home a mouse, and playing with the mouse. Then it seemed like things were going to work so I wasn't going to mention it. Now I'm going to mention it again.
It sounds like he enjoys the chase and the catch, even if the prize isn't worth eating because there's plenty of kibble in the food bowl.
“As I am sure any cat owner will be able to tell you,
someone else putting you in a box is entirely different
from getting into a box yourself.” —bisexualbaker