Perry knocks him down, and the force of it makes him stumble a little bit, veering into the opposite direction. Thankfully he's able to right himself and not fall down. It would have wasted precious minutes as it was, and already he can see that a lot of stuff was getting snatched up before either of them even got there.

There's the knife, and he tries to pull off what could have been a badass move, where he slides like he's stealing home base. But instead, he changed his mind at the last minute, so it's more of a stumbling thing as his hand closes around the knife.

Looking for anything else to take as he pushes back up, he notices another knife close by. He only has a split second to think, and his mind hasn't caught up with his body, as he kicks the knife in the other guy's direction.