So, I've had a cat by the name of Beatrix for a little over a year now. No matter how hard I try to train her, she absolutely refuses to stick to the rules. I have three other cats who are very well behaved, they don't scratch furniture or eat off of people's plates, they use the litter box, and play nicely with one another. Beatrix, on the other hand, is always in some kind of trouble. She's destroyed a three sofas, including two new ones, she's torn down the plastic I spent 4 hours covering my windows with for the winter, she pulls bones, bags, and food out of the garbage on a regular basis regardless of whether there's food in the dish or not, and worst of all, you can barely walk away from a plate of food to grab a drink or use the bathroom without her pulling your chicken, pork chops, or hot dogs off of your plate. Just now I went to check the mailbox and she's licked all the milk out of my cereal. I normally use a spritz bottle for basic bad behaviour, and I use it on all of my cats, respectively, however she's even begun to draw my three already trained cats into bad behaviours they haven't engaged in for many years. I'm so fed up I've considered getting rid of her. Of course, I don't really want to have to get rid of her, she's a welcome edition to our family, but I don't know how else to teach her not to do these things. Any suggestions?