Finally the extra power he was looking for came through as Jack and the other PA members shot at the werewolf who was chasing him, and judging by the thump and whimper coming from behind him, they'd been successful in subduing him, which was incredibly lucky.
But there was a werewolf here too. It ran past him and Sam took aim, not sure who or what it was, just knowing that it was one of those vile creatures which could, and probably was trying to do so, attack him.
"Reducto," he shouted as it ran to attack the recently immobilised wolf. "It's a monster, kill it," he shouted, his eyes glinting with fury.
Sam wasn't racist.
He knew that some werewolves were friendly, and he knew that most of them had quite manageable alter-egos. However in a situation like this it was highly foolish to just give a dangerous creature the benefit of the doubt. Wolfsbane potions were not fool-proof, any werewolf who was truly on their side would be stowing away safely in the castle, or hiding somewhere in the forest, keeping as far from their friends as possible.
That, and he wasn't friends with any werewolves, so he knew that this one shouldn't be trusted.