A well placed kick or punch in a controlled environment, i.e., class or testing will almost always get recognition by me-usually in the form of a short bow. I don't expect the same from my sparring partners but I usually see it. When ego takes over a match however, the small courtesies often disappear and I have witnessed many get out of hand. Physical control of your techniques requires mental control also...a lot is revealed about a student when you watch them spar.