The neighbors have 3 grandsons that are probably like 8-13 years old. I have no idea, honestly. Just a minute ago, I noticed in my periphery a human scurrying around in my backyard. For a quick second, I thought it was my SO, but then realized he was in the bedroom watching TV. I walked out, and it was one of the kids. He and his brothers had hit like 3 baseballs into our yard, and that little turd climbed my rickety old fence to get them. He was making a run for it, but I stopped him dead in his tracks and asked him very nicely not to climb my fence again. He started moving again, and I asked had he not heard me; he said yes and continued on his journey back over the fence. I then asked him if his grandparents were home, and the grandmother pipes up and goes, "I told him not to hit them over your fence." Yes, well. The grandfather has told them that before too, and clearly they don't listen. I told the grandmother that if they hit the balls over the fence, just send them to my front door and I'm happy to go retrieve the balls for them, and reiterated that my fence was not made for children to climb, and oh by the way I have five dogs. She said okay and I went back inside. This isn't the first time they've jumped the fence, and I know my SO has talked to them about it before (them being the kids & the grandparents). Clearly, talking isn't doing anything, so what I do I do to prevent this in the future? We are saving for a new privacy fence, but it's going to take a while to save the money to fence in an acre.