Posted by Sabrina B. @gametimegirl It never stops with this guy. Always up to something! Metta World Peace aka Ron Artest said he wanted to bet $3oo,ooo against Kevin Durant’s team last week and then he took to twitter to  challenge ANY NBA player $500k to a game, after that Metta World Peace & Rampage Jackson may have come to an agreement to box and now he wants to give a fan $20,000 if one thing happens… Check it out after the jump…