The wolf knew a well practiced hunting tactic when he saw one, he didn't understand why the humans would prey on each other, but when the smell of fear hit his nostrils an anger he had never felt before welled up in him. He didn't remember moving but suddenly he was behind them, they seemed small to him, they had looked much larger from the back of the alley.  He realized he was standing on his hind legs, it seemed so natural all of the sudden. He took a quick look at himself, he towered over the humans, seemingly frozen in the moment, his front paws had changed, similar to a humans but ending in large claws. Not wanting to wait for them to notice him, they were moving so slowly he felt like he had all the time in the world, he stuck his paw through the chest of the nearest flanker, swats at the other, watching the spray of blood hang in the air, and bites down on the leaders head, dragging him back into the darkness of the alley for and shaking him, the sickening snaps of bones echoing down the alley.