void main()
{

    object oSpawn;

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

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

    // Abort if the local string is not exactly "1".
    if ( GetLocalString(oPC, "crbthse1") != "1" )
        return;

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

    // Have the PC perform a sequence of actions.
    AssignCommand(oPC, ClearAllActions());

    // Spawn "mrdooley".
    oSpawn = CreateObject(OBJECT_TYPE_CREATURE, "mrdooley", GetLocation(oPC));
    AssignCommand(oSpawn, ActionStartConversation(oPC));
}