Whodunit?

Do you see all that white stuff, grrrr, this annoys me, I wash the laundry and what on earth do I find, some paper in a zillion pieces. What do I do when this happens? I take it outside and shake each item and then I turn it inside out or inside right what ever the case may be and shake some more. And I like to find out who did this but this time I didn't find anything big enough to pin point whodunit.