I grew up in a house with cats. We had boy cats and girl cats, silly cats, funny cats, serious cats, shy cats, and occasionally the mentally challenged cat because let's face it, all cats aren't Mensa level. Ahem. Anyway, their dynamics were always fun to watch, and their companionship was always just part of life. Our new kitties, Miss Liza and Mr. Jarvis, are the coolest pair of cats I've ever encountered, and they bring us great joy and many chuckles because their antics are endless and their personalities continue to develop in cool ways as they mature. Liza is the instigator of the two, the brains of the operation. She likes to shred things with her little teeth. She shreds the newspaper, anything paper that's left out and she happens to notice, small rubber soccer balls, wadded up notebook paper (that I throw for her while I'm studying), you name it..she loves shredding stuff. Her killer instinct is well-honed, and it never ceases to amaze me when I fin...