We love ninjas, pirates, robots, and zombies here at Gallivant, but there's only one of those that we'd actually consider becoming. Cloud 9's Private Ninja Lessons can help you on your way to becoming a stealth assassin or just improving your self-defense skills. The 90-minute sessions — held in Yonkers, NY — are led by an actual Shidoshi, and include history, tradition, and philosophy lessons before the ninjutsu-based self-defense, awareness, and combat strategy practice begins, possibly including some weapons training, but most likely not teaching you how to effectively throw a ninja star.