I was thinking along the lines of some screen material, possibly the stuff you put down to block weeds on top and maybe some rocks on top although he might still play with the rocks, IDK. Cats usually don't like the smell of vinegar so a little cup of vinegar in there would likely keep him away. Even a vinegar dampened rag would still keep some smell there and not smell around the room. Another deterrent is a squirt gun, squirt bottle or a spray bottle set to stream and give a squirt when he goes near it. After a few times of getting wet, he probably will stay away from it, although if you leave for a while, he might just forget!

I agree with almost all of what has been written above. YOU need to fix it NOW. You're 3.9 years overdue, plus your girls are at a particularly nasty age. It'll be ten times as hard now as it would have been 4 years ago. Sit them both down in a place with no distractions and lay down the law. I'd try it with both together, but if that won't work, divide and conquer. Maybe talk to them in the car at the side of the road or in a parking lot (stomping distance from home?) -- whatever it takes to get them to listen. Keep your rules simple and short, and set the bar realistically low. In other words, they are not required to be nice, but are absolutely required to be civil. Dinner will be eaten together at the family table, and anyone who doesn't want to eat, doesn't eat. (Period. Get a cheap plastic locker and padlock if needed.) All questions will be answered in a polite manner. (Ask Hubby to keep them minimal at first.) Make a written list of your rules and post them on the wall. Also pre-determine consequences for breaking the rules -- loss of computer, phone, gaming, TV, iPod, piano, activities -- and FOLLOW THROUGH. Make your punishments short but severe. Since their behavior has become habitual, maybe come up with a 'warning' signal you can give them so that they can turn it around before losing a privilege. Now on the BioDad. He needs to understand that by encouraging them to behave that way, he is turning his children into little monsters. They are already disrespecting you; it won't be long before they turn their disrespect on HIM. And on anyone else who displeases them -- teachers, friends, coworkers and bosses. He is doing them NO FAVOR and actually causing them quite a bit of damage. You may want to gather some hard evidence of Dad's support before launching your 'fix' campaign. Why? Because I'm guessing YOU will not be able to change Dad's mind, no matter how persuasive your speech, because a Dad who does that isn't thinking clearly. But try to persuade him. Give him a chance and ask for his help in turning the girls' behavior around. Maybe write him an email? Several? And if he refuses, drag his butt into court because a judge will straighten him out pretty quick. Family court judges see this kind of thing a lot and have very little tolerance for this kind of carp. Maybe ask for court-ordered counselling and compliance monitoring? Or ask that if Dad won't comply, that he lose unsupervised contact with the girls? Frankly, I'm surprised your husband has put up with this as long as he has.

My very first cats were indoor pets, my apartment companions. Happy as clams, they lived for many happy, active years. Later on, we moved into a more rural environment and we opted for a cat door and an indoor/outdoor life for our cats. They all appeared to be very happy, actually spending most of their time inside whenever we were home. They loved the outdoors, no question. And so began years of testing for and treating numerous diseases, plus tapeworms, hookworms, roundworms, heartworms, fleas, ticks, cat scratch illness, and ringworm (fungus). Makes me a little ill when I think of it. Gosh, all of the visitors, young and old, that I exposed to these issues. I developed ringworm on two occasions, and had a long, debilitating bout of cat scratch illness on another. This was before the days of the powerful chemical treatments we now shower our outdoor pets with to prevent a few of those infestations so we had to fight flea infestations on the cats and in the home......even more exposure to chemicals. But if cats are eating birds and rodents (and who knows what else), they WILL end up with an assortment of internal parasites as well as other stuff that can infect their owners. You cannot vaccinate against everything. Be mindful, too, that humans can host some of these internal worms.

Well I guess I will have to chose between cutting the grass and using the blower to clean the patio AND all these activities http://www.zen-garden.org/html/page_Maintenance.htm http://www.zen-garden.org/html/page_bottom_surface.htm http://www.zen-garden.org/html/page_cleanup.htm Doesn't look like fun :-)) especially if you use gravel pebbles or sand