We have 2 kittens. 6 months old. One is dying to get out. Other a bit scared. We can't open a window or he escapes. Our garden cannot be enclosed. We are letting them out supervised for very short periods but he is crying to get out all the time. Google telling us to go slowly over weeks, and train them to come in by calling their name and rattling their food bowl. He ignores all this. Ignores his favourite treats. We have to lift him in. The girl is more cautious and doesn't veer far from the door. So any advice? Or how did it go with your kitties?