My wife has invested *incredible* amounts of time and effort into our yard in the last few years. Unusually, our house sits way to one side of our lot, so the one side is just 6000 square feet of flower beds, a 15x25 fenced garden, a MASSIVE flowering imperial cherry tree, wrought-iron arches with climbing trumpet vines, hummingbird misters, bird baths, the whole bit.
Mind you, it is fenced in. And you have to walk around 3 parked vehicles and go through 2 gates to get in there.
I come home from work, and the first thing I notice is a baby sitting in the flower bed, throwing dirt everywhere. For a moment, I think it's someone my wife has over, until I notice that neither of the cars in the driveway belongs to us. I park at the end of the driveway, and 4 people are sitting under my pergola, at my table, with their strollers.
For some reason, I hadn't noticed until that they had to move my motorcycle to get their strollers up to and through the gate.
I walk up and ask them who the heck they are, what they're doing in my yard, and who owns the baby currently destroying my wife's flowers.
I get an extraordinarily snotty response they they live on this block now, and are as entitled to use the park as anyone else. I told them it's not a park, it is my yard, and they need to leave.
Rather than admitting they made a mistake, she decides to get huffy, and tell me that it doesn't become mine just because I live next to it. I told her she had until I finished using the bathroom, because if I came back out and they were still there, I would call the police.
They left, and I put a padlock on the gate.
The husband showed up 3 hours later wanting to know what the park hours were. I told him there weren't any park hours, it is my yard. He told me it wasn't fair that I had a private park, and I'd be hearing from his lawyer.
I'm sure it's going to get interesting in the next few months.
ETA: This has been up for 20 minutes, and it's already been pointed out so much I'm adding that I already have cameras. Both the security kind and the bird kind.