Heard today...
Heli calls up low level and as usual due to a bloody great big hill, we can't talk to him ....
ATC: Heli803 Could you relay traffic on yourself to low level company traffic G-XXXC
(Heli Relays - sterling effort, even got the QNH in, and then does it again off his own back to another A/C)
ATC: Heli803, thanks for that, if you would take a pay cut we could get you a job