Of course I am old and forgetful, but I don't recall ever needing a bio for dance performances, maybe because I didn't do many stage performances until I started teaching. Dancing in restaurants, bars, and such I was lucky to get someone to clear the floor for me, never mind announcing my background. Had I written an intro, it would've included, 'Warning! Don't touch: she knows jujitsu" for some of the venues." Ha. Those were the days.