Bro saw him going for the knife, and he knew he had one chance to get this right or else he would be pretty fucking screwed. He was calm though, and it was probably because of that, that he managed to spot the hoe Don had dropped, with enough time to grab it, stand up straight and twist around, swinging it as hard as he possibly could right at the back of Don's turtle shell, aiming to hit with the sharper edge of it- the same one that had cut into his arm earlier.