LOL LOL I laughed so hard at the topic of this thread!! Oh, how true it is!!! I've experienced many RCO's in my day. I have to wonder what it is that causes my cat to spaz out out of the blue every now and then. My parent's cat is especially active in RCO's. He's a lazy cat too, which makes it all that much more humerous. He'll get up and start scratching at the couch or the floor with his back arched up really high...then Wham!!! He takes off tearing through the house! It's really funny, and he makes funny sounds too.
Marius will do RCO's...and they usually involve our upstairs banister that looks out over our living room below. Sometimes he'll lay on his side and pull himself along the rails with his front paws. Kinda hard to describe...but oh so funny to see!