i was once checking out a new dojo that opened in my area. the head instructor was a former green beret who also worked as a mercenary who was so deadly he was banned in forty seven countries. he demostrated one of his deadly manuvers by asking me to throw a punch to the head and after six punches, that he was not able to defend. (i used straight punches from ishin ryu karate which he said he never seen or expected) he wanted a roundhouse so i complied, then he did some move to intercept the punch and lock the arm which did not work. then he started to tell me about his tiger balm creme that was made from tigers that are going extinct. also he had a large picture of Jesus on his wall above the pictures of himself and some masters of his art. i did not want to call this man a liar but I felt sorry for his students.