Don Rickles on Instagram: "The King of Insult Comedy: Don Rickles (1926-2017). Relive the genius of "Mr. Warmth," the only comedian who could relentlessly insult everyone—from the biggest stars in Hollywood like Frank Sinatra, to the guy sitting in the back row—and still be adored. Don Rickles mastered the art of the affectionate jab, turning his stand-up act into a high-wire, unscripted roast where no one was safe, but everyone was laughing. Rickles' career, cemented by his legendary and unpred