My all-time favorite vignette in Rabbi Bechhofer's biography of Rav Avraham Elya Kaplan, who has been quoted here before, is this:
When Rabbi Aharon Kotler married Reb Isser Zalman's daughter, Reb Aharon delivered an extraordinarily profound pilpul [intricate Torah discourse]. None of those present fully comprehended its contents. Up stood Reb Avraham Elya with a smile, and repeated the entire pilpul clearly - in rhyme!
...which still makes me laugh over breakfast, 98 years later.