Cats have a reputation for being demanding and doing as they please. To prove otherwise, an American animal trainer has created a traveling circus troupe - but not of lions and tigers. This tamer of savage beasts features the pint-sized members of the family Felidae - the kind that can often be seen lounging on chairs or yowling for food. Her circus features domestic cats. From Boulder, Colorado, Shelley Schlender reports on the Acrocats.