Your world view certainly does not encompass Japan then. It is basically not possible to leave a tip there. You'll be chased down the street with the money you

Your world view certainly does not encompass Japan then. It is basically not possible to leave a tip there. You'll be chased down the street with the money you 'forgot'. And if you could get past that misunderstanding, through insisting, then you'd be insulting the server by rudely highlighting your spending power, over their presumed economic need.