Gaseous Clay

I should not have added onions to the salad. Interstingly enough, Mythbusters were examining flatus, aka lower G.I. gas. How ironic.

Not to mention, typical in school -- a sound or SBD, and the kids scatter to get away from it, pointing at likely suspects who all point in other directions. If a bomb goes off, should you worry who set it, or get the survivors out? I wasn't too worried about the perp, but hoping to get the kids' attention again.