It's still the first day of April as I write this, at least where I live. A beautiful day it is, too. Early this morning I enjoyed reading several blog posts with April Fools' pranks and jokes in them. I don't have any pranks, but was reminded that quite some years ago a couple of noted chess authors described the Elephant Gambit as "not so much an opening as a joke."
That phrase tickled me; it still does. So, in honor of the day, I represent an old game of Diemer's played in 1983 when he was about the age I am now. (Diemer was born in 1908).
I hope you enjoy it. Really, I'm not kidding. But even if I were, the game shows that the joke is on White.