Let's say, hookers and johns are doing their business in front of your home. Do you have the right to shoot them with a paintball, super-soaker, or other non-lethal device? Sadly, no, although that would be an awesome event to charge admission to. The police, of course, prefer you call 911, at which time a cop will show up an hour too late, decline to make a report due to the lack of evidence, and scold you for using 911 for such unimportant things.