The start of the NBA season brings lots of excitement for fans. Many of the best athletes in the world are back on our TV screens on a nightly basis, and storylines such as Kevin Durant's first games with the Golden State Warriors and the Cleveland Cavaliers' first attempts to defend their historic title loom large. Also, sometimes an angry Philadelphia 76ers fan in an Allen Iverson jersey flips off Russell Westbrook and elicits one of the funniest reactions you'll ever see.