You remember correctly...he almost had to have a “rap” that he memorized...not musical, but it had a rhythm to it. He took it very seriously, by all accounts. He had the North Vietnamese snookered by playing fully into their class warfare BS of being a dumb, simple-minded poor boy being taken advantage of by the imperialist American government. He did it so well they simply didn’t regard him as much more than an imbecile, and he used it to advantage.
Ah, the answer to my question at #13.