"Public praises, private reprimands" One of my bjj instructors is a boorish 3 stripe purple who never got that memo. He's not a bad guy, just a bit rough around the edges with a penchant for self-aggrandizement and sarcastic belittlement of people not as skilled as him. I don't need a hug but I don't need someone constantly telling me I suck either. Examples of self-aggrandizement include him constantly telling people "[technique X] doesn't work on me" to which I'm like "You think so? Let's see you defend that against a world class bb..."; or claims that he used to tap a guy who started bjj with him and is now a high level brown belt competitor. Our head instructor - whom I love, great guy and teacher - laughs it off and agrees that our man has some growing to do. I sorta could see that tough-love approach if he were trying to groom high level competitors maybe...but we're a small school of hobbyists most of whom stop competing after blue. So - "public praises, private reprimands" - do you guys view it as an important (vital?) part of good instruction or not?