My sweet, beautiful, loving wife is an Irish immigrant. She's only been here in the US for 6 years and still has moments of culture shock. Mainly with how rude people can be in public. A woman approached us at the grocery store as we were discussing dinner, and told her the classic "you need to speak english". Yes, my wife can be difficult to understand, and it can sound like she's speaking some sort of dark orcish language. So my wife removes the bottle of drain cleaner from our cart and told this woman to go drink it, and suggested mixing it with diet coke to make it go down. Security was called, I was a mix of mortified, and proud, and my wife made a comment about "years of bloody war and terrorism, and she thought I'd just roll over like some helpless b***h".
Ps, security did not remove anybody from the store, but the other woman was told in no uncertain terms that she was not allowed to harass other customers if she would like to be allowed to shop there in the future.
My wife saw me typing this, and said "you tell em' I'll do it again".