@Override
	public boolean invoke(MOB mob, List<String> commands, Physical givenTarget, boolean auto, int asLevel)
	{
		final Physical target=getAnyTarget(mob,commands,givenTarget,Wearable.FILTER_UNWORNONLY);
		if(target==null)
			return false;

		if(target==mob)
		{
			mob.tell(L("@x1 doesn't look dead yet.",target.name(mob)));
			return false;
		}
		if(!(target instanceof DeadBody))
		{
			mob.tell(L("You can't preserve that."));
			return false;
		}

		final DeadBody body=(DeadBody)target;
		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;

		final boolean success=proficiencyCheck(mob,0,auto);
		if(success)
		{
			final CMMsg msg=CMClass.getMsg(mob,target,this,verbalCastCode(mob,target,auto),auto?"":L("^S<S-NAME> @x1 to preserve <T-NAMESELF>.^?",prayForWord(mob)));
			if(mob.location().okMessage(mob,msg))
			{
				mob.location().send(mob,msg);
				body.setExpirationDate(0);
				CMLib.threads().deleteTick(body,Tickable.TICKID_DEADBODY_DECAY);
			}
		}
		else
			return beneficialWordsFizzle(mob,target,L("<S-NAME> @x1 to preserve <T-NAMESELF>, but fail(s) miserably.",prayForWord(mob)));

		// return whether it worked
		return success;
	}