If I Fits…
Cats love the small little spaces that their nimble bodies can sneak into. If you’re a cat owner, you may have found your feline friend inside of a paper bag once or twice. In this case, we wonder if this is a lack of intelligence or if the cat just finds jumping through the kitty door extra fun.
Even though this door has been left wide open for the cat, he enjoys using his little kitty door instead and will do so every chance he gets. Jumping through the door could be his version of playing. Maybe his owner left the door open so that the kitty could go in a circle, making an obstacle course for him.