Arnold was not about to get owned by Dexter "Ghetto Asshat" Jackson. He mocked him since Dex has an attitude problem....apparently with everyone. Dexter is selfish in a Shawn Ray kind of way. He will act normal and humble only because he needs something. In this case, he couldn't piss off anyone in the IFBB or Arnold until he won. Shawn does the same thing as does Flex. When they are not bigger than everyone else they all kiss ass. Then the moment they get what they want they go back to acting like a porch monkey. Hahahaha! Dexter actually believes he is superior to Arnold! I always knew he had issues but JESUS! this was over the top. Dexter is so stupid and inarticulate, he didn't even realize Arnold was making a fool out of him. Lol, I'm on a rant about this sry guys