It was similar to the pen Haring gave you when we were 1-0 up. A slight shirt pull and Goldson (IIRC) goes down like he's been shot. Ultimately, Haring was to blame though. As to that challenge, if I were to do that to you while moving - barged you with my hip - you'd go down too.
Agree that Vargas has that in his game and it's ugly. He's got a long way to go before garnering the rep that Boyle has.