The perennial singleton and misanthrope is determined to become a more easygoing person for the sake of his friends and his future health.
Comedy fans will find out this Sunday, December 7, whether or not a leopard can change its spots, or if they are doomed to be angry forever not to have been given a more uniform and symmetrical fur pattern.
His show in Sheffield starts at 8pm. Check ticket availability on www.sheffieldcityhall.co.uk or 0114 789 789.