All it takes is one little mistake to give children nightmares for years. Two movies who’s titles both start with “INSID”, the gory and horrifying Insidious 3 and Pixar’s latest kid flick Inside Out were mistakenly switched up at at a theatre in Ohio. What was the result? A room filled with crying children, angry parents and a apologetic movie theatre manager.

Everyone was given free upgraded tickets but apparently that didn’t stop the children from being frightened. “I got our money back. ” said Jazmyn Moore on their local paper’s Facebook page “but the damage is already done. My children are terrified and keep asking questions.”

Quick tip: if you’re ever supposed to see a Pixar movie and that little lamp doesn’t squash a letter first, you’re probably about to watch the wrong film.