That's the thing, he taugh them for a year and 3 years, and here, in military or special guard mostly they are well versed in one type martial art, good physique and huge ego. so when they were given some ma instructor they always tried to test him like choke him from the back without warning or when ask to punch, they kick instead, asking impossible scenarios and so on.
So for him to "survive" those years means he got their respect.
Also he is well respected from martial art community because of his openness to touch hands with other system, until now as far as i know his dojo's branches have open door policy that welcome others to come visit and "trade knowledge"...
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