A substitute teacher from Montville, NJ, has landed herself in hot water after telling a classroom full of first graders that Santa isn't real. Michael J. Raj — the principal at the school in question — sent a letter home to parents explaining exactly what happened "regarding [the teacher's] poor judgment in making this proclamation."

"During the course of the day, a substitute teacher apparently announced to the class that Santa was not real," wrote Michael. "As a father of four myself, I am truly aware of the sensitive nature of this announcement." He added that the letter was sent home, "so that you are aware of the situation and if the conversation comes up at home over the next few days you can take appropriate steps to maintain the childhood innocence of the holiday season."

Whether or not your children's substitute teacher makes the f*ck-up of the century or they catch wind of it from the kid down the block, tell them that, "When you stop believing, that's when Santa stops coming" to squash any lingering doubt. Works like a charm.