My first teacher who was a 5th dan when I started taught all of the beginners classes initially - it was great - he was so welcoming and friendly and worked directly with you.
I remember being 3rd kyu and going over to drop a photo off for Mr Smith at the Renshinkan and him not being aware I was going over that night... He seemed so sorry that he had to attend a meeting for something or other so called the meeting short and came back and taught the rest of the class without getting changed because I'd travelled over... So I got to train directly with a 6th dan not wearing his gi or hakama etc. It felt pretty special