I guess it was last fall ('03) my husband and I took the skin-kid to one of those little circuses that they set up in town (he was afraid of the clowns and it was a huge ordeal....) and they had an entire cat act. They stood on back legs and rode little balls, they had a series of little (3" x 3" maybe) posts set up at different heights several feet apart and the cats would jump through hoops, etc. They even raised one fat persian up to the top of the tent on a platform and it jumped onto a red velvet pillow. I nearly fainted!! I thought the trained cats were the most impressive part of the show.