I think that Tucker looked so funny with the doggie door. Half in and then half out he just thinks this "toy" we set up just for him is great fun!
Tucker could do this all day if we let him, but as I have said before, he is not trustworthy with his house training. He will GO out on the deck if we don't watch him like a hawk.
Stewie's opinion is less than enthusiastic of Tucker using "his" door. I think he preferred it the way it was as an escape door before we taught Tucker to use it. Sorry Stewie! Every time Stewie goes in or out Tucker follows him.
So that Stewie doesn't get thoroughly annoyed with the little (oh...Tucker is bigger) guy, I give him an out of the kitchen pass to run off to the rest of the house where Tucker is not allowed to go freely.