Damage Rolls with a Minus Modifier: Minimum 0 or 1?

[flankspeed]

Weapons such as the Cutlass do 2D-2 damage, and bare hands can conceivably do 1D-2 damage or less. When such modifiers reduce the damage rolled to 0 or less, does the attack do a minimum of 1 Hit, or can the modifier actually make a damage roll do 0 Hits before armor is taken into consideration?

I looked in the Damage Roll sections of Melee and Advanced Melee, but could not find a ruling on this. GURPS seems to distinguish blunt and edged/pointed damage rolls as being different, but TFT makes no such distinction.

Does anyone know what the rules-as-written intend? If not, then how have you ruled on this?