Charlie will be 20 weeks old (I guess that makes him 5 months) this coming Wednesday. He and Lola have been enjoying our back garden for a fair few weeks now with no major problems. However this morning Charlie climbed the wooden fence between us and our neighbours house and sat at the top. I called him for his lunch, but he became stuck and I had to help him down. I have now shut the doors and I am keeping the cats in. It's raining at the moment so they're not missing much. I am not worried about Charlie in regards to road safety as we live in a very quiet residential area. I am worried about him becoming lost, not being able to get back over the fence if he decides on going over for an explore, someone taking a shine to him and taking him or Charlie deciding he has found a better home elsewhere. Am I right to keep him in and be concerned or am I panicking over nothing. I don't remember half this worry with Thomas when he started going out. He must have been around the same age as Charlie. But Charlie seems so small. Maybe that's because I am comparing him against Thomas as he is now. Thomas must have been that small at some point, surely. Help! I'm turning into a smothering paranoid cat owner!