Several years ago at an airfield very near LAM.
An American voice comes over the radio: "Good morning ***** Information, this is *****.
FISO: "Good morning *****, pass your message."
Pilot: "***** is a B747 routing Boston to Frankfurt (I can't remember the exact destinations, but you get the idea) at FL350, request zone transit."
FISO: "Roger, nothing known at that altitude to conflict. Our advisory QNH is 1025. Keep a very good lookout as the circuit is active."
Pilot: "QNH 1025, keeping a very good lookout, *****."
True story, I was there.
RD