Cartoons. It is true that within the heart of every cat lover there lurks a potential cat hater. Who has never cast the first shoe at a screeching cat at 4:00 A.M.? Who among us has not taken umbrage at the haughty rejection of a tabby or Siamese to kindly human overtures? Who has not dreamt of wringing the neck of the claws that gouged the couch? Ex-cat lover Skip Morrow has concocted, with acid pen, a diabolical collection of feline fantasies -- some of which you may recognize as your own. Others may inspire you to new heights -- or depths.