I read this somewheres and thought it was real cute!

At least once a week, leave a large hairball on the floor in a conspicuous place (the middle of the new Abusson rug is a purrfect spot, or next to the bed is good!) Your human will entertain you for several minutes, by poking, prodding, and analyzing it for content, then extend your entertainment by discussing it for hours with other fascinated humans. (The human mind has an unfathomable bent for making lemonade from life's lemons.)

Extra points are given for making a lot of noise before hurling the hairball. A tried-and-true technique is to hunch over, cough, gag, and groan a lot, then when you have attracted the attention of a solicitous human, produce your award-winning hairball. Your rewards will be enhanced by her cries of "ewuuew!" as she surveys the prize.