Boy/Girl Day (Dress the opposite of what you are)
If "Bedford Middle School" rings a bell, that's because it's the school that's flying a rainbow flag in the hallways alongside national flags. The school administration has refused to take it down, despite community outrage, and (not unexpectedly) the Mass. Department of Education said the school was not in violation of the Parental Notification Act.
You see, homosexuality and its promotion has nothing to do with "human sexuality" issues, according to the gay activists (that includes the Mass. Department of Education)!
Well, this time, parents complained to the Bedford Middle School principal, and they won! He decided to cancel the cross-dressing day, and quietly had students run around the school and change the poster to read that Wednesday would be "Sports Day" instead.
Here is the full text of the poster as it originally appeared: