I have two boys from the same litter, had them since they were kittens. They’re now about 9 1/2 years old. In their first home, a one bed flat, they were house cats for most of their life. They occasionally went for a sniff outside the front door, sometimes late at night but they’d come back after a few hours and yowl to get in. I bought a cat exercise wheel but never really managed to get them to take to it (perhaps I didn’t try hard enough.) I moved two years ago into a bigger ground floor property. Last summer I had my window open all the time and they came and went as they pleased, no problems. A year ago I had a cat flap fitted in the window so they could do their own thing over the winter and beyond. One of the boys is fine, he’s a real daddy’s boy and a homebody so never disappears for more than a couple of hours, mostly just sitting on the windowsill. His brother though, he’s become a problem and it seemed to start ever since the elderly couple next door started feeding him along with all the other neighbourhood cats. He started spending more and more time out and I learned eventually that he was even going into their property and making himself comfortable. I told my cousin about this, a cat owner of a zillion years and she said I need to shut that down right away as he will think he lives there now. I had a word with them and asked them to stop feeding him and letting him in. They appeared to do so. The problem is, I think the little bugger has found another willing audience because he now disappears for 5-6 days at a time. He’s never around the front or back of the flats for that time and then I’ll suddenly find him out the front on next door’s windowsill. I have to pick him up and carry him each time. If I left him it would be god knows when, if ever that he came back in of his own accord. I will say the boys don’t really get along that well. They used to fight a lot in my old flat and it got quite vicious sometimes. Once in a blue moon they’d cuddle together. If I have them both in now and they cross paths, one might hiss or spit at the other, usually the one that wants to stay out. It used to be the other way round where the homeboy would bully his wandering brother. I got him back in again today, but I don’t know what to do. He beats the living crap out of the cat flap periodically trying to get out and if I don’t have it switched to full lock down he can prise it open and get out (when I thought leaving it on “in only” was enough to keep him in during the day once he came in.) I can resurrect the cat wheel and try to get them using that for exercise and help stave off boredom for when I’m not at home but otherwise I’m lost. It really feels like he just wants to “move out” for want of a better phrase. Any advice would be much appreciated. I’m tired of the worry that something might have happened to him everytime he goes off to his new family wherever they are.