I started off with Karate as a kid then started taking Wing Chun in College (same Kung-Fu style that Bruce Lee started with). Later in college I took some Aikido and that saved my life. I did about a 50 mph shoulder roll when I crashed my motorcycle and ended up mostly unscathed, just scraped up but nothing broken. I never learned how to do any sort of tumbling or breakfalls in Karate or Kung-Fu, so that few months of Aikido saved me.