I suggested that we build a cat patio at home so our cats would be safe from woodland animals and whatnot and also not kill birds. My father just laughed at me. He also said it'd be impossible for adult cats to get used to it. I don't think it would be! Sure it might be difficult, but not impossible. My dad never listens to me when it comes to our cats! He thinks he knows everything about them just because he grew up having farm cats. He's never even read books on them like I have done.