Japan's top ranking for 'experienced disrespect' is somewhat amusing, i'd be interested to hear anecdotes.
Related tangent: I, no joke, dreamt last night I was at an omakase in Tokyo and told the chef "Kuidaore/食い倒れ" (Osaka kinda colloquialism for ~"Eat yourself into bankruptcy"...kind of like cheers), which offended them for whatever reason, because we weren't in Osaka (which is totally preposterous, to be clear)