Oooh, how about this one:
The "7 trumpets of Revelation" were 7 utterly forgotten Bible Student conventions in the 1920s.
I always got a kick out of imagining the face of author of Revelation, resurrected after centuries, upon learning that his fantastical fire-and brimstone visions in psychedelic technicolor.....
....were taught to be symbolic of events that were so mundane & dull that probably the people who attended the dang things probably forgot all about them on the ride home.
Imagine his crestfallen face..."so what did my vision of the 7 trumpets mean? Angelic war cries? God himself speaking from heaven? Celestial fireworks? What's that? They were conventions? All that fire and fury in my visions, and it just represented boring speeches by idiots? That's it???"