Although it wasn't meant to be funny at the time;
28 August 2003, flying a PA-28 to Chalons-Vatry (LFOK) in France:
Me: "Vatry Tower, good afternoon. Cherokee F-GIEQ, 15 nm south, inbound from Troyes at 3,000 ft, QNH 1023, request rejoin for one touch and go".
Chalons TWR: "Good afternoon F-EQ. Runway 10 is in use, RH circuit, report downwind for touch and go. One Air France 777 doing circuit practice, caution wake turbulence".
No sh!t...