Script Function: Q4LO

 function void Q4LO(obj this, obj usedon, obj user)
 {
   if (Q4BD(this, usedon))
   {
     copyControllerInfo(this, user);
     Q4UH(usedon, this);
   }
   else
   {
     if (Q4KK(this, 0x00))
     {
       obj Q4UO = isAnyMultiBelow(getLocation(usedon));
       if (!Q593(Q4UO, user))
       {
         bark(this, "Items in other people's houses or ships cannot be guarded.");
         Q4LP(this);
         return ();
       }
       if (isInContainer(usedon))
       {
         bark(this, "Items in containers cannot be guarded.");
         Q4LP(this);
         return ();
       }
       if (thinksItsAtHome(usedon))
       {
         bark(this, "Other people's items cannot be guarded.");
         Q4LP(this);
         return ();
       }
       if (isMobile(usedon))
       {
         if (!isPlayer(usedon))
         {
           if (!Q4BD(usedon, user))
           {
             bark(this, "Living things other than pets cannot be guarded.");
             Q4LP(this);
             return ();
           }
         }
       }
       copyControllerInfo(this, user);
       Q4UH(usedon, this);
     }
   }
   if (0x00)
   {
     bark(this, "done any guarding I'd do, returning.");
   }
   removeObjVar(this, "petGuard");
   return ();
 }