The line “Mongo only pawn…” was written by Richard Pryor, who was originally cast to be the black sheriff in Mel Brooks’ classic, Blazing Saddles. I watch the movie when I need a lift. Good hard laughter is a sleep aid.
The studio overrode Brooks in casting, and the part of Bart, the sheriff, went to Cleavon Little, who did a creditable job.
But we’ll never know what we missed had Pryor gotten the part.