void main()

{
    object oTarget;
    object oSpawn;

    // Get the creature who triggered this event.
    object oPC = GetEnteringObject();

    // Only fire for (real) PCs.
    if ( !GetIsPC(oPC)  ||  GetIsDMPossessed(oPC) )
        return;

    // Only fire once.
    if ( GetLocalInt(GetModule(), "DO_ONCE__" + GetTag(OBJECT_SELF)) )
        return;
    SetLocalInt(GetModule(), "DO_ONCE__" + GetTag(OBJECT_SELF), TRUE);

    // Spawn "zoointellectdr".
    oTarget = GetWaypointByTag("WP_SPn_zoointellectdr");
    oSpawn = CreateObject(OBJECT_TYPE_CREATURE, "zoointellectdr", GetLocation(oTarget));
}