The only defense, like I said, is knowledge to what someone's done. You can't watch your kids 24 hours a day, you let them go out and play, and expect them to be safe.

At first, I tried to ignore him, and then I see more and more kids going over there playing, running up and down their driveway, and I said, 'Hey, something's got to be done.

If you're not on your computer actually looking for that, you're not going to see it. But people who drive by, they can see the sign.