Ooohh, oooh, I've been waiting to tell someone about this as I've been fuming. 
I was in Aldi on Sunday and it was really busy. You had to be patient to go down some aisles and wait your turn, which most people were doing.
The area I was in has a large population of Muslim immigrants, most of whom are Somali. I was behind one of them, a man, and we were both attempting to go down an aisle. A big angry looking man was coming the opposite way and said extremely rudely to the Somalian man, "Really?! MOVE!" The Somalian guy tried but couldn't as I was standing there and bumped into my cart. He smiled at me and I asked if he was okay.
The angry guy said "get the fuck out of my way!" And shoved past both of us, muttering something about people who didn't speak English. I wheeled around and gave him my best "oh-you-utter-CUNT" stink eye.
He turned to me, kind of threatingly, and I was ready to let fly with my "this is America" speech, the long and short of which is, unless you are 100% Native American, you just keep your fucking mouth shut about immigrants. But his wife hustled him away asking him what his problem was.