this little brat is not worth our time, to argue with her... its obvious.. school is out and she needs someone to bother... maybe a good day care or summer school would work for her, and less time unsupervised. 15 should be old enough, but obviously not in her case.
those cats with the wonderful outdoor life, hmm wonder what happens to them when they attack each other and get seriously hurt, maybe the vets that only care about money can help them.