Funny story all this reminds me of: when my oldest child, Michael, was little, we lived near a lot of woods. In the woods there were growing bushes that shed "puffballs," which were round and when you squeeze them, little puffs of powder came out of them. The kids liked to collect these and squeeze them at each other (yeah,I know). One day Michael came home with a whole pocketful of "puffballs." On closer examination, I discovered he'd come home with a whole pile of rabbit crap. Needless to say, I was glad he hadn't squeezed them all over his little sister. That story still embarrasses him even though he was only 7 or so at the time.