One memorable occasion was at a restaurant I frequented 2-3 times a week. The owner was visibly perturbed at two teenagers speaking badly of American soldiers, not knowing I understood every damn word.
I told the owner “no problem”, with a smile. As I left the restaurant, I went over to the two teens, and said in meine beste Deutsche sprechen , “I know a few Americans that think Germans are real a$$holes, too!”
The look on their faces was priceless, as were the owner’s guffaws.
If I were Miller, I would have made the manager aware of his bartender’s rudeness, and give him a chance to correct it.
That’s a great story! Reminds me of a friend who used to work with a Polish engineer in Chicago who was always hustling a very attractive Polish secretary in the office. When they were in the elevator together the Pole would make disparaging remarks about all the co-workers including my friend, who he assumed couldn’t understand them. He did of course, and after a week or so replied in Polish about how impressed he was with her sexual attributes and skills which were the engineer was constantly telling his co-workers about. It turned out he’d never even got her out on a date, and of course after this, never would.