drop bear
Sr. Grandmaster
That would be an awesome introduction to class. I'd want to know whether my teacher's teacher was an immortal highlander or if he just used a time machine to go in search of pre-gunpowder armies to challenge.
I do try to remember to offer a disclaimer when I teach something that I have less practical experience in. For example, the shoulder throw (seio nage). Because of my height (6'4") this isn't a good fit for me. I hardly ever pull it off in sparring. However I know the technical details and I do teach it because it's a valuable technique for people with a different body type. So I tell my students up front that they will almost never see me use the throw, but it may work out better for them. I have taught the throw and then had students use it successfully in sparring afterwards. If that never happened, then I'd probably leave it to someone else to teach the technique.
I have only had one guy at the start of class say that he didn't want to be taken at his word and does want people to challenge him on his ideas.
Same guy I got that quote about facts.