So have your cats trained you too?  My two cats Blue and Roscoe are indoor/outdoor.  When they want in they meow at the back door and I open it for them.  When they want out they meow at the door again.  Well,  sometimes I am opening the door every 10minutes!  Do they think I am just going to stand at the door all day?  

Yep, they have you trained. It's ok, my mother in laws beagle has her trained too.