oop3 destructor

PassengerCompartment::~PassengerCompartment(void)
{
    static bool did_it = false;
    if ( !did_it )
    {
        if ( inner_PassengerCompartment != NULL )
        {
            did_it = true;
            delete inner_PassengerCompartment;
            inner_PassengerCompartment = NULL;
            cout << "Inner Passenger Compartment to be destroyed!" << endl;
        }
        cout << "Passenger Compartment to be destroyed!" << endl;
        did_it = false;
    }
}