Kids raised by drug addicts and habitual criminals have a much better than average chance of ending up a drug addict or habitual criminal. A lot of it is learned behavior, but a lot of it is also genetically ingrained anti-social personalities and other mental disorders. Their daddy didn't see a problem putting guns in peoples faces, just like junior doesn't have a problem busting out the teeth of fellow students. The schools won't be able to fix those problems. The courts routinely abdicate their