We had a buffet i went to a few times a week for lunch for several years, we developed a relationship where they would seat us immediately, get a drink order and we were off, and then run our cards while we were eating so we could take off when we needed to. They had a dedicated sushi section, and from repeated proper tipping the chef would see me come in, a motion was made, and he made my favorites fresh right for me lol. Good fresh sushi is amazing, and we even have a poke bowl place here that is to die for. I guess in Japan it's an actual apprenticeship, where they make nothing but rice for the entire first year.