There was this one guy, who suffered from horrible B.O...He was a nice enough guy, but he had very bad hygiene. He wouldn't cut his toe and finger nails....and they were extremely dirty. Sensei always paired me up with him when we worked some of our techniques....and almost every time he would scratch me accidentally.
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"I come to you with only Karate - empty hands, I have no weapons; but should I be forced to defend myself, my principles, or my honor; should it be a matter of life or death, of right or wrong, then here are my weapons Karate, my empty hands"