Since Graham had the unfortunate position of holding onto one of the beast's legs when it starts to freak out. He was kicked aside rather viciously, send sliding in the dirt, almost knocking him out of the safe radius. Unsteadily, he gets to his feet, but manages to risk getting close to it once again. It's the only way he can use Life Thief to heal himself; otherwise he'd be useless. He backs up as soon as he can from the monster in the hopes of not getting stomped on again.