Get a good baby barrier gate and put a thick row of plastic grocery bags on the top of it, but make them flap about. If you can put a small fan on them to make them move a bit all the better. Most cats don't like flapping plastic grocery bags (they are often used for protecting sofa arms). The cat will not go through the baby gate barrier and neither will the poopin' pom, and the AC will get through. You might also try to rig up two baby gates (pain in the arty to move around all the time), but it has to be high enough to prevent the cat from jumping over it. Make a makeshift gate out of a fence pannel or piece of lattice from the home improvement type stores or farm store (this is like a baby gate but can be turned on end and cut to size) to make it higher at a cheaper cost. You can top the gate or lattice with a chicken wire contraption with a bent piece that bends way inward, then downward (facing outward from your room). Make it high enough the cat cannot jump over it outright and curved inward so any jump or climb attempt results in a harmless head banging or having to walk upside down which will usually result in a drop back downwards to the floor. The trick is to make it high enough, yet be nice and open for air circulation, easy to move away, and little expense. If you want a scent deterrent get fox urine at a hunting store. That will work on the cats maybe, but the dog may find it attractive. I'd say use skunk because no mammal can stand that (including humans), so I won't say it:-) You do have to sleep in this room. As a training device to go along with the barrier for when you in the room and either the cat or pom want to come in, fill a can with dried beans or coins and put a lid on it and when the cat or dog try to enter the room throw the can near them (don't hit them). It will scare the carp out of them each time but they won't associate the fear with you. It will make that doorway a scary place over time with enough unpleasant episodes committed to memory. You can also try dog pepper repellent but that stuff will make YOU suffer when spraying it (so cover your eyes and nose).

There are those who can't seem to understand why others threaten to "rid" those problem cats. Usually some owners of pets. Yet those who have to deal with other's pets, which is what cats are, who continue over and over to destroy and leave filth on other's own private property is a nuisance. There are some that should not own pets, that do not care what is done to neighbors. Those same people are the ones who have no say in what can or can't be done to remove those problems. What happens with these pets come down to the owner. Control them or don't. Would you let your children run free to trash and urinate on other people's property? If so, maybe others will return the favor to you and your home. Since it is apparently no problem there.

I am thinking that the following may help with what it is not: Human http://courses.washington.edu/chordate/453photos/skeleton_photos/human_vert.jpg Dolphin http://courses.washington.edu/chordate/453photos/skeleton_photos/dolphin_vertebrae.jpg Horse http://courses.washington.edu/chordate/453photos/skeleton_photos/lumbar_vert_anterior.jpg Here is a link that might be useful: Biology 453 Amniote Skeleton Photos

An elderly man I used to know had a male siamese with a kink in his tail as well as crossed eyes. He was tough as nails. Nobody but my friend could pet him. In fact, if you were talking and he thought you were going on too long (or loud) he would come over to you, jump up and press his nails into your knee caps. My friend would have to step in and stop 'Punkyboy' from hurting anyone. A neighbor in his apt bldg used to allow their cats to roam the halls. They would come to my friends door and it would bother his cat. One day they were there and my friend opened the door. His cat shot out of there like a rocket and attacked them. He chased them both back into their apt and under a bed. The neighbor was screaming for my friend to come rescue everyone because he was afraid he'd have his hand torn off trying to separate them. He was probably right! He quit letting his two cats out after that. I love Siamese cats!