What are your thoughts on the "Teachy Guy" in class? You know, the one that when you are drilling with keeps making corrections. I have seen the guy that just got his blue belt correcting higher belts, and I have also seen the higher belt correcting lower belts. Even if they are right, its still kind of annoying, no? I don't mean giving advice every now and then, I mean after every roll or every rep of a technique. Thoughts?!?!