My school had two school shooting threats made the same week, and didn't cancel school. They just called the whole sheriff's department to play army at the school. Walking in looked like a scene from a movie in Nazi Germany, guys with guns at the door and dogs barking, APCs outside. I think there was even a helicopter at one point.
Then in March of 2020, we were supposed to come back from spring break, but the school STILL said that there was no danger because a county health offical said so. We almost went back to school until the state governor declared state of emergency and prohibited anyone from going to school.
That's just life in the USA
Grammar Nazi too, ay?