Wow! I know a lot of city folks that would love to be your neighbours. We live in the country but our cats are 100% indoor because of the local wildlife. Just do not want to lose one of them to a racoon, fox or coyote. Chester (my avatar) is a bit of Houdini, but he usually just heads for the catnip patch. More than once, I have found him on his back, totally zoned!!