To the Principal:
Younger Daughter missed the bus to school today because I discovered at the last possible moment that she was supposed to wear black. She refused to go to school without black clothes. She doesn't have any black clothes (I'm not a fan of black clothes for young children.) I eventually put her in one of her older sister's black shirts.
Then I found the notation in her homework folder that she's supposed to wear black for a PSSA pep rally! I am completely opposed to the current focus on standardized tests, which in my (widely shared) opinion is wrecking public education. It's bad enough that you're holding a pep rally for a standardized test, but to ask me to dress my child to show support is too much. Please don't do this again.