The single most horrifying weapon ever conceived by mankind. The mere mention of such a diabolical utensil is enough to send a sane man hurtling into a downward spiral of madness. The threat of a frozen poop shank is not one to be taken nor delivered lightly, for the second a man starts sharpening his shit in the freezer is the second he has nothing to lose.
Man 1 pulls out a knife and demands Man 2's wallet. Man 2 reaches into his lunchbox and pulls out a frozen poop shank and demands Man 1's wallet, and receives it.