Our kitten has figured out how to open our door. When I caught this on video I had never seen her do it, because the only time she finds it necessary to open the door is in the middle of the night when Brent and I have "locked" her out of our bedroom. (We've had to resort to putting a chair underneath the handle so she can't get in. Sure it's only a matter of time before she figures out how to get around that obstacle.) To get her to open the door I put an almost empty can of tuna on the other side of it.
I just had to see her do it again, so after letting her lick the tuna can for 5 minutes or so, I let PDub have at it and closed the door on Penny again. The noises of PDub chowing down drove Penny crazy...she just had to have that tuna!