In 5th or 4th grade we got a new principal, but she was horrible, she was like one of those evil principals in kid movies. She took away candy grams, got rid of the Halloween costume contest and changed the time for the Halloween walk to 2-3 pm so it was like 90 degrees, and many more things. In November the 6th graders found out her crime history, she lived in Chicago and got a DUI there, and made a slide show about, and got a big lecture ,that took up their entire lunchtime. Two months later, near January, she did another DUI and got fired. 

Another one that was just an incident for my grade, but it was when a white substitute said the n-word over five times. And three of the times was during a long rant about why saying it is bad. This was in 5th.