Dear Dr. Boli: Do you remember where you were when you first heard the news of the Defenestration of Prague? —Sincerely, Lars Walker.
Dear Sir: Did someone throw Prague out the window again? Time and time again, Dr. Boli has told Prague to stay away from the window. But does Prague listen? No, it does not—and soon enough it ends up floating down the Vltava in bits and pieces once more. Well, this time Dr. Boli is not going to pick up the mess. Let someone else take care of it.
Dr. Boli's Celebrated Magazine. 
Dear Dr. Boli,
If an American says “Vltava” in the middle of the forest, and there’s no one there to hear him, has he still pronounced it wrong?
Sincerely,
etc.
[…] Dr. Boli: If an American says “Vltava” in the middle of the forest, and there’s no one there to hear him, has he still pronounced it […]