Scary day at middle school

My children's middle school had a bomb scare today! Someone wrote on a bathroom mirror that a bomb will go off at 3:40. The teachers were handed a note in their classroom that told them to look around their rooms for any unusual objects. The kids were kept in their classrooms while the police searched the lunch area. Nothing was found, so the day went on like normal, except the after school programs are going to be dismissed at 3:20, just to be safe.

I can't believe these kind of things happen in middle school; I thought they wouldn't happen until high school, and of course I was hoping they would never happen.