When an old pilot man I had the sometimes dubious privilege to work for, in the days we plied the Bass Strait and it's islands daily, this fella (his initials were DH in all truth) . . .. DH would hog the frequency for minutes at a time, rabbiting on to some other plane about separation or intentions or you name it .. . after one prolonged monologue from DH, the moment he unkeyed his mic . a dag designated NP softly intoned for all to hear - "Change hands Dallas - change hands."