It didn't matter.   Harry seemed like a man in the grip of a dream, and he tightened his hands until Hermione grabbed at his arm, ignoring the horrible feel of wet seaweed wrapping around her skin, and pulled as hard she could.   "Pansy," she said in genuine fear when she couldn't get him to release Ron. "A little help here!"  That snapped Pansy out of her shock, and she swung her arm back and hit Harry with enough force to break his concentration, which let Hermione and Ron pry his hands away.