Ricochet likes to nap on top of our tallest bookcase. It's one of her safe spots, where she allows us to pet her. I have to stand on my tiptoes and reach to pet her. Today, as I was petting her, she scooted closer to the edge, so her butt was hanging slightly off the bookcase. She then got overly excited and apparently forgot where she was and fell off the bookcase onto my head (seriously!), grabbed my hair for some traction, then landed on all four paws, and bolted under the bed. Though I am a little scratched up, she seems no worse for wear. An hour later, she jumped on top of the bookcase again, and meowed at me to pet her. We managed that time to have a petting session without any further excitement.