Nice......:)

Me dino also imagined river rocks passed out of the bucket to students at the beginning of each class, the teaching stepping out of the class and returning to see broken windows with everyone too afraid of Bubba the Bully to snitch him out. .
Solution? I recall having to sign my name to the serial number of any rifle issued to me when I was in the Marines.
So each river rock should have a number painted on it.
For example, if Little Johnny is assigned five river rocks, he may sign his name to #7, #11, #13, #21 and #30.
So if a window breaks and river rock #13 is found on the school yard outside, Little Johnny is toast, even if Bubba the Bully took #13 from him.

Straight out of Islamic State Fiction......yep, we got gooooood government...

And lo it came to pass that a shooter didist enter unto the classroom of a school and didist proclaim "I shall slay ye all until ye art slain."
And whilst the shooter didist speak before the confined multitude of kids, the teacher passeth around the five-pound bucket of river rocks so the children could take unto themselves the number of river rocks allotted to each.
And yay the teacher cried out in a loud voice, "Smite that shooter for it is ordained that all intruders shall be stoned." Then the teacher didist duck.
"Woe!" criest the shooter who didist flee the storm of stones and lo it camr to pass that some of the stones didist smiteth him some.
So didist the shooter stumble out unto the school yard as didist all the classrooms yield its fruit of students and five pound buckets of river rocks.
From the buckets all of the stones were this time hurriedly passeth unto the children to each in accordance to their needs.
And lo the shooter cried out in agony as he was stoned unto death by his encirclement of students of multiple grade levels.
And the students cheered and were praised and yay at the end of that day all sayeth it had been a good day surely.

Sounded a bit tribal