Most of these "karate" type guys are wankers and useless in a real fight.
Stop telling people you got the black eye sparring at the dojo. Tell your students what really happens when you shoot your load into the mouth of the wrong guy in a parking garage. Tell them how I threw that right cross and bounced you all over that parking garage head first. Its called a good old fashioned Tom Prince beatdown.
Fuck 'em.