[DonaldC]

I used to work for a guy from Portugal and during a time that a long time friend worked for him as well, they would switch from Portuguese to English in mid-sentence if they heard someone walk into the room. I did not care at the time if they did it or not, but I had a great deal of respect for them for doing so.

[Jeff Chandler]

Where I worked Mexicans who spoke perfect English would carry on conversations in Spanish in rooms with English speakers. Quite rude.

[Rumplemeyer]

I have had the same experience, I have work with the Portuguese and Spanish in heavy/highway construction for 40 years the considered themselves “American” first.