Former boxing champion Mike Tyson has stormed out of a rehabilitation centre just days after starting therapy for cocaine addiction. The 39-year-old ex-world heavyweight champion quit a $35,000 (GBP20,000) treatment programme at the Meadows Clinic in Arizona just five days into his 30-day stay. He claimed he was inspired to undergo the therapy after a trip to CHAIRMAN MAO's tomb in China, but walked out mid-way through a session, and never returned. A source tells British newspaper the Daily Mirror, "He flipped and stormed out."