I bet two minutes after the door closes, kitty is off to explore something else, eat or nap!
Perhaps she could give kitty some lovin's goodbye far away from the door - and ignore the cat when he/she is right AT the door. Kitty will get bored pretty quickly if it's not getting attention!
"When I think of Mick Jagger still singing that he can't get any satisfaction in over forty years of being in the Rolling Stones, I have to conclude that he's either lying or not all that bright." -- Henry Rollins