Eppo, seriously I've held back for a better reply thus far but, damn concentrate on teaching than worrying about "Dudes going hard" and posting half thought comments.
Really appreciate what you have to say and Most of the time makes a huge amount of considered sense, but.......

BTW, I didn't want to bore anyone with the Vid, already watched it too many times and as an old "Poly" (70's/80's = me) as you put it, thought "Everyone" may get a laugh other than (Mark_Australia) who thankfully hasn't got involved, I'm going to say it "His Avatar is
offensive", I saw a certain railing in the vid with a board rider scratching his back and wondered (hoped), that was him? nah .... no computer in front of him