Sorry my friends across the pond....but this did happen on QM2.
In the buffet/self serve area a man was demanding "his" table & that a young couple be moved from it (remember this is the buffet) out of sympathy for the poor Eastern European waitress the couple moved, the guy who demanded the table was not happy & was ranting at the couple who were half his age with twice the class. I couldn't help comment on behalf of the young couple & the younger waitress & he started on me, better me than them anyway....but, & here is the big BUT..the problem was what came next...."I am an AMERICAN I can have what I want because you Brits would be under the Nazis if it wasn't for us!"...I did say if you are typical then the Nazis couldn't be that bad....he THEN said he was Jewish & I was now a racist!! At least those who didn't choose to argue were now not involved.