Once again, unless they are dq'd a torikeshi is just a revocation of a point. In the case of kiken the person would have to really do something that...
Our shodan exams are not nearly so intense so it's hard to answer your question, but I think when I joined by new (current) dojo my sensei said "what...
I've had to take my ikkyu, shodan and sandan exams three times before I passed each rank (I was able to pass my nidan exam on my first try). In each...