Retired heavyweight champion Mike Tyson joined CNN’s Don Lemon on Wednesday night to plug his new cartoon on Adult Swim, “Mike Tyson Mysteries,” which he described as “‘Scooby-Doo’ meets ‘The A-Team.'” But when the anchor tried to end the interview, “The Baddest Man on the Planet” was having none of it.

“What the hell did you put me on the show for?” asked Tyson, conceding to Lemon that they had chatted, but mostly off camera. “Don Lemon’s full of shit,” he continued.

Thankfully (for Lemon) the exchange didn’t come to blows and the interview ended with the unlikely pair shaking hands, laughing, and expressing their admiration for one another.

H/T Mediaite