Muhammad Ali once trolled a public speaker with an electric pencil sharpener

This man's tale of a bizarre encounter with Muhammad Ali is a 20-tweet long epic well worth the read.

Twitter user @ThatBoysGood, who recounted the story on Saturday, once drove to an Ali event hoping for an autograph and a photo. He left with both — plus a newfound appreciation for Ali's humor and heart.

SEE ALSO: Watch Muhammad Ali gleefully prank a bunch of kids

And he learned a lot along the way, including Ali's thoughts on opponent Ken Norton's cranium.

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