@ossobuco,
tai chi had a cat who used to roll around on the balcony looking for cool spots on the cement, one day she hears this faint mewing, goes out on the balcony to look for the cat, nowhere to be seen, looks over the railing, and theres the cat, 3 floors below on the ground, with a look like, "hey, come and get me, i fell", no damage but she (the cat), was more cautious after that
thinking back to a pic from a pages back of a cat on a balcony railing, i'm reminded of a friend who had a kitten that liked to walk around the railing on their balcony (21 floors up), his girlfriend hated it, but the kitten seemed to like it, and never fell