Hey! Open the door, its me...the cat! Cat knocks at the door to get in!

Its SIX in the morning. Look who has just now managed to get home after a long night of...well...who knows what! Its the cat. You can almost hear him yelling, "Hey PEOPLE! I know you are in there! I know you can hear me knocking! Open the door. I'm NOT going anywhere! Come on...its me, the cat!" At our house we have, for the most part, trained the dogs to let us know when they need to go OUT. Apparently, the cat in this house learned to let the PEOPLE know when he wants to get IN! This is why we have dogs.