Not all that long ago, listening in to UA transmissions while a passenger (this was part of the entertainment, just dial up channnel 9 on your armrest)....
heard an American airline flight ask for Direct to Bovingdon.
The controller said, "Sorry, sir, that will take you directly through a danger zone."
Said an anonymous cultured British tone "Go for it!" .........
..followed by that wonderful radio silence when you can just imagine everyone on frequency snickering happily.