Similar experience I'm afraid on a very recent trip back fom Mexico City. Mexican CC retired to tail section leaving British crew in charge. While I was in the galley requesting water, Mexican passenger came in asking for food in Spanish. English steward says " can you speak in English?" Incidentally, it was the very same steward who had opened the overhead locker above me without any due care as demonstrated in the sfety video! then responded to my comment "carefull the locker is full" with "we are permitted to open the overheads you know!"
Makes me proud to be English sometimes! - not!
Fly the flag!!!!