DON’T make physical threats
It doesn’t matter how volatile your experience has been at your job – you are wrong for making physical threats. You can feel frustrated and pissed off to the point of screaming, but threats are no bueno. For heaven’s sake take a kickboxing class to get out your anger! No matter if you had joking intentions or were dead serious about busting up your boss in the parking lot, physical threats of any kind are taken seriously. Why put yourself in a situation where there is a question of physical activity? If it was worth it to quit your job, why is one person you despise worth getting jail time? Stay far away from threats and physical encounters of any kind.