The kitty problem

If something can go wrong it will.
I know that's a very pessimistic attitude and those who think with such negativity will rarely go far in life, but sometimes it just really applies to a situation.
Right now this situation applies to something huge -- bigger that huge -- ginormous. OK, I could be exaggerating a little. It applies to my cat. However, this is no ordinary cat. She is the money pit of cats. If something can go wrong with her, it will, and it will cost. Big.
A brief kitty history: This feral cat was born along side my mom and dad's garage. We domesticated the mother cat and her litter and through the course of nature only one kitten survived -- we named her Cali. Being an outdoor cat in a semi-country area proved to be a problem. She returned from a night of prowling with wounds on each side of her buttocks -- a sign she had gotten in a fight with something. A shaving of the tushy, surgery, stitches, pain medicine and several 100 dollars later she was back to her old self.
This then lead to realizing she couldn't eat human food or "wild" prey of any kind because she has a sensitive stomach and digestive system. Should she have either of these or the fat-filled store bought cat food, she will develop bladder crystals and a bladder infection. Try giving a cat antibiotics -- I just dare you.
So with her fancy $30 a month prescription bag of food I thought she was set. Until she came home with a broken leg. This lead to another surgery, several months of getting fresh splints put on every week, along with about $600 more. Here her outdoor privileges were taken away.
Most recently this tamed indoor kitty began shredding a living room chair, out of the blue. This I could live with. After all, it was just one chair. Then she took aim at my grandfather's chair, circa 1975, that my parents had reupholstered for me.
This meant war.
But of course with even the most simple surgery, like a front declawing, something would go wrong. The surgery went fine however the glue the vet used to adhere the skin together the menace cat picked at -- thus introducing bacteria into the fresh wound. This led to a visit back to the vet and the purchase of an Elizabethan collar and antibiotics, not to mention more money.
Super.
If I were smart, I probably should have given up on this beast long ago, but obviously I'm the sucker here.