This thread reminds me of a Mexican friend I had years ago. Ho told me I had better watch myself because he knows Mexican Judo. I thought ,cool, a south of the border martial art and I asked him to show me some Mexican Judo. I kinda steeled myself because I figured he was going to use me for the demonstration. He got into a Kung fu like stance, pointed at me and went, "Judo know if I have a knife, Judo know if I have a gun."