You could accidentally smash the bowl? Still dodgy, but if someone's just writhed and frothed at the mouth and died, you might knock things over as you try to get to them.... but then they could still test the fragments, couldn't they? Hmm.
This is why I couldn't kill people, it requires too much hard work and thought. :/

I think I'd probably just go to littledetails and get their opinion! :)