Okay, so cats in boxes is one thing — but why do cats insist of critiquing art with their butt?

Okay, so cats in boxes is one thing — but why do cats insist of critiquing art with their butt?
Tweet Tweet 09:07 This morning it finally feels like spring in KC. # 12:35 A frozen entree is rather unsatisfying as a meal … Must remember to pack a proper lunch for tomorrow … #
Tweet Tweet 08:33 What IS is it with cats and boxes? # 19:01 Woohoo! First evening warm enough to read on the porch, with urban wildlife entertaining Mischief, and Mayhem begging to share my merlot. #
Tweet Tweet 13:06 Must get on with my day before I get sucked into Sunset Blvd on TCM… # 19:05 What was that strange bright light in the sky this afternoon? Oh yes. The sun. It’s been awhile… #
Tweet Tweet 10:31 The dishes are getting all uppity and must be dealt with. # 15:19 I’m trapped in a meeting and I can’t get out… Send chocolate… #