Meaning the homeless are slow-learners? After the first hour they should have known to stay away. Any stray dog would have learned that lesson. Surely the word got around.
You may not know this, but in major cities, the “homeless” come and go, different people drifting in and out, and the first hour is all it takes for this church to have ambushed another homeless person while sleeping, and wet them and their bedding down, to face the winter.
Why deliberately not put up a sign?