Thank you for sharing that video. It’s one of my favorite ones to refer to!
As for mistakes in social situations, I will never forget one of the first conversations I had in Japanese. The person I was talking to asked me if I bought bananas often and I wanted to say “Yes, I do. They are cheap” I said 「はい、バナナは野菜です～ 」
yeah never made that mistake again. I was sooooo embarrassed.
Even today in class, one of my ninth graders was writing for a presentation and she wrote
"drown" instead of “drawn.” I explained to her that spelling is really important in these situations because you can write 気持ち悪い単語. And we looked up drown in the dictionary together and had a laugh, which is the important part of this story. It’s important to be able to laugh at yourself and you’ll definitely remember what mistake you made because of the experience you had. I don’t think she’ll ever forget the difference between Drawn and Drown now.