void main()
{
   object oPC=GetItemActivator();
   object oTarget=GetItemActivatedTarget();
   SetLocalObject(oPC,"oTarget",oTarget);
   if (GetLocalInt(oPC,"nIsVampire")==TRUE)
   { // use it
     AssignCommand(oPC,ClearAllActions(TRUE));
     AssignCommand(oPC,ActionStartConversation(oPC,"vamp_tool",TRUE,FALSE));
   } // use it
   else
   {
     SendMessageToPC(oPC,"You are not a vampire!");
     DestroyObject(GetItemActivated());
   }
}