Re: dojo head bans students from training with another teacher (ex student)
Early in the infancy of my dojo, our sensei banned her students from training elsewhere for a couple of years. Her reasoning was that other dojos weren't as strict in imparting fundamentals and she didnt want her pupils picking up "bad habits." By the time the ban was lifted, her best students were around first kyu and the quality of their movement did stand out. It was her dojo, her rules.