Late response, but I have a story for you. Years ago, we lived in a first floor apartment. Back then, the cat was an inside/outside cat and he'd spend all day outside, then scratch at the door when he wanted in. It was a regular practice that when we heard his scratch, we'd just open the door to let him in without looking. I didn't like this and one day got a fantastic idea to make my point. After returning from a run, instead of knocking, I scratched at the door just like my cat did. I even scratched low on the door like he did. It took a few times before my wife heard, but as soon as the door opened, I shot my hand in the gap and grabbed her right in the mouth. I was able to pin her head against the wall, with my hand over her mouth, all in one motion before she even knew what was happening. It scared the Be-JESUS out of her, but she got my point without a long, drawn out discussion or argument. Thinking back, I'm not even sure if I had brought up my concerns before I played that little stunt. Either way, she changed her habits immediately and the exercise was so effective that she wasn't even mad.