Heh. Actually, I think that would be one of the best ways to do combat spell preparations for sneaky chaos. Fancy dinner, switch the target's dish with one that has a contact preparation on it, perhaps in the bread, or something else they need to touch with their hands. Target sits down, starts eating... BOOM! Death Touch at as high a force as you can do it, edge rolled when making it to boost the potency as much as possible. Even if the target lives, people start looking for who just tried to kill someone in the middle of dinner, and egg is on the face of the host. Big embarrassment.