My first year of shopping i was waiting in line at the post office in a small town.. There was a long line and one young clerk was working. Some customers were getting irate about the wait and one customer said something racist about the clerk within her hearing. I wasn't sure what to do and it took everything I had to not get in his face. I felt I had to be just an observer and not screw up the up-to-the-deadline shop, but it was hard.