I saw the flipper family -Father and his son with my own eyes today and I'm surprised. (Mr.Mori told so after they left the shop.) I also agree that Mr Mori is doing a hell of a job and undoubtedly we can't buy multiple items at once / one per walk-in customer.
Great father and son relationship If I'm unemployed one day, I'll ask my retired father, mom, little brother, cousin, grandma, grandfa, neighbours, colleagues, cats & dogs to line up at rxh shop. hohoho