Hell, I'd have loved to go into school when I was in grade school and found an round from an F-16 in the middle of the classroom!
Yeah! The boys would be saying "COOL!" and hunting for them on the ground.
Have seen the news reports on TV about this. It appears they found only 6 bullets on the roof of the school and a few in the parking lot. In one pic, you could see the round just laying on the roof, no penetration involved.