I watched a woman get in a shouting fight with a hispanic woman at a local greenhouse (of all places) last weekend. The hispanic woman and another gent were speaking (loudly I will admit) spanish. The lady told them to please speak english and if they don't know it then please learn it. The woman looked at her and said, "I don't have to speak english in the U.S. but soon you will be the minority and have to learn spanish". Scary.