"Get out of the pool," I said.
My voice was not loud. The children stopped moving anyway. Sandra lifted her eyebrows and began to say something about arrangements. I interrupted as gently as I could, because the children were watching, and told her there were no arrangements and that she needed to leave my property immediately. I directed the children to climb out using the steps, not to hurry or run on the wet patio. Once everyone was safely on dry ground, I gave them time to collect their shoes and towels.
Sandra stood near the coping, water dripping from her sleeves. "You could have handled this more privately."
"You brought three children into my yard after receiving a written notice not to enter," I said. "There is no private version of that fact."
"It isn't as if we're strangers."
"Being neighbors doesn't make the pool yours."
Her face hardened. "I think you are being unreasonable about a resource that could make the whole neighborhood happier."
I looked at the narrow gap in the fence, the children shivering in their towels, and the water I would now have to have checked again. "This isn't a resource you get to distribute. It's my property. Please leave."
She shepherded the children through the opening. I held back until they had passed safely, then watched Sandra follow them into her yard. Just before she disappeared behind the hedge, she turned and said she hoped I would eventually learn that community involved giving things up for other people. I did not reply. I went inside, saved the camera footage, and called the police nonemergency number.
The dispatcher listened while I explained the situation. I identified myself, gave my address, and said the intruders had already left. I emphasized that nobody was injured, that I was not requesting emergency assistance, and that I had camera footage and a certified notice withdrawing permission. She asked whether I felt threatened. I said no, not physically, but I needed an official record because the entries had continued despite repeated warnings.
An officer arrived later that morning in a marked patrol car. His name was Officer Avery Park, and he had the composed manner of someone who had been sent to resolve more arguments about fences, driveways, and overgrown trees than most residents would ever imagine. He listened without interruption as I described the original permission, the subsequent visits, the fence damage, and the written revocation. He did not react dramatically when I mentioned the eleven July recordings. Instead he asked to see a representative selection and the most recent event.
We sat at my kitchen table with the laptop between us. I showed him the opening in the fence, Sandra guiding the children through it, and the uninterrupted sequence that ended with my asking everyone to leave. He watched the clips carefully and asked whether I had given Sandra permission to enter that morning. I told him I had not. He asked whether the certified notice expressly prohibited access to the backyard and pool. I opened the notice and its signed receipt.