Not so long ago, in a North Sea Offshore Sector far far away at dusk,
Heli: "Radar **** just lifted from the **** 2000' for Aberdeen"
Radar: "**** roger no radar contact, Flight Information Service, No known traffic to affect you at alt 2000'"
Heli: "Roger, (in sarcastic voice) we are visual with the other (c/s) traffic passing down our right hand side descending!"
Radar: "**** that callsign descended in field 20 miles south of your departure point, I have no known traffic in your area, can you identify the traffic you have in sight?"
Heli: "Oh, my mistake, it must be a ship!"
We try our best, but sometimes I wonder........