just get some mates to go to the pub and talk about how you kneecapped some kid who climbed your fence to get a ball.
If that shit gets repeated enuff, loud enuff they will assume you are mental and keep away.
Although that Smoke Cloak looks awesome. I once let a marine distress smoke flare go off in a car.. at 140km/h with all the windows down the smoke was coming out faster than the slipstream could clear it