Cali who has never been outside does all those things also. I got so tired of putting the curtains back up every day. She also would runs to the door every time we open it trying to get out.....it's been fun trying to keep her in. Even the screen in room doesn't help.

The one thing that stoped her from attacking my curtains was I got some $1 cat toys that hang in the door way, with the mouse on the end. Maybe you've seen them. She now attacks them over my curtains. The more toys I get her the better she is about other things also.

As for the harness, I've done that and it worked great. I had a half bobcat half manx who was leashed trained, when I lived in an apartment. We went for walks on the beach, around the neighborhood, etc. He even took long car rides with me to parks etc. My X-husband also made him a run rope, so he could enjoy the outdide with a good amount of area to move around. Tigger was happier and so where we.

Of course people where afraid of walking near the sidewalk, once they saw a cat that big, tied up. They assumed he was mean or else we where nuts.

It will all work out, I'm sure. Give it time and try all kinds of different things, till you find what works for you.