Haha! I think he worked with Gil Scott-Heron as well, so that definitely makes sense, yet it's very amusing, to picture that..He is not keen profanity in Rap. He made sure A Tribe Called Quest did not curse on the track where he played too.
But it's pretty admirable, too! Heck, I'd probably at least try not to curse if i had an opportunity to work with a musical genius of his format..