In high school, I remember huddling next to my classmates while we watched the door, praying. My teacher stood next to it with a two-by-four, ready to fight if he had to. None of my classmates were killed that day, thank God. But 10 years later, I still re-live it every time I hear about another school shooting. No child should have to text their family that there’s an armed gunman in their school.