That Zippy cat

[LMigliore]

I'd love to have seen him studying that door, figuring out how to take it apart. Amy has proved to me they can study things, think and figure out how to do things so I am sure he sat there and studied it for awhile. Maybe you should change his name from Zippy to Chief Engineer!

He's even trickier than you thought. We have two cat doors, one between the house and garage and the other to the outside. The house/garage one is open. Zippy examined the working one very carefully for days on both sides, pulling and pushing it and checking the locks. He clearly knew that the outside door was the same and was using the inside one to study on.