Re: Problems in a dojo
I'd punch his lights out then say "Bow to your sensei!"
But in all seriousness, I would leave that school. An instructor who does not care for his students (which is shown by how he has helped you with your problem) is not an instructor worth caring for. I would make sure to tell the instructor exactly why you are leaving, and do not be rude but do not candy coat it. I'd say something like this.
"I am leaving due to personal issues with person X. I have tried to resolve the problem, but he refuses. I have tried to get your help, but you have refused. I am done with this. Let me know if this situation changes and maybe we can try again. Thanks."