Stu Ungar was a professional poker and gin rummy player, widely regarded to have been the greatest Texas hold ’em and gin rummy player of all time. Ungar was infamous for his arrogance and for routinely criticizing aloud the play of opponents he felt were beneath him—which included just about anyone. One of Ungar’s most famous quotes sums up his competitiveness: “I never want to be called a ‘good loser.’ Show me a good loser and I’ll just show you a loser.” Ungar’s genius-level IQ and eidetic memory. contributed to his blackjack abilities, which were so sharp that he was frequently banned from playing in casinos; he was eventually unable to play blackjack in Las Vegas or anywhere else.