In the last 48 hours, I think I read an news article on a Japan web site about how some Japanese kaiten sushi restaurants pass off cheap fish as expensive (e.g using maguro instead of toro in negi toro maki)
I can't remember if it was a new story or an old story, but if it rings a bell with anyone, can you point me back to it? I may have been dreaming although I hate to think what dreaming about fraud at kaiten sushi restaurants would say about anyone's state of mind.