Tales of Woe...Why Won't They Let Me Have a Margarita Machine in My Classroom???

Confusia here. Can you guess what just happened in my room? Hmm??
Well, something's been going on for about an hour, but I couldn't catch any of them in the act. Finally, my big break came. Out of the corner of my eye, I saw a kid throw some small particle of something.

Me: What did you throw?
Kid: Huh?
Me: What did you throw??
Kid: (bewildered look on face) I didn't throw anything. (with wounded expression)
Me: Bring me whatever is in your hand. (Taking a risk with this one, I know.)
Kid brings up piece of eraser which I was kind enough to let them borrow.
I look at floor. Floor is covered with small bits of eraser. Of course, they're all innocent. Oh, how some of them could benefit from a good b**** slapping.
At the very least, I'm going to get 6 shiny new erasers out of this!!! One from each of them. Yes, some teachers have movies made telling of their heroic and inspirational lives...Others just make the little bastards replace destroyed erasers.
I am, Proudly, one of the latter... :)