If stunners could knock out a dragon, they could certainly knock out this thing. Even though he was just one person, he was going to do what he could to subdue it. His best attempts, however, did not help. "Hermione no!" He screamed, knowing he was only going to be able to hold it off for so long. He was hoping he would be able to keep it from hurting anyone else until the hitwizards got there. "Hermione! Take Anthony and hide!"
At the mention of his brother, George gritted his teeth and instead of the stunning spell he had been using previously, yelled out "Confringo!", hitting it in the face, if you could call it a face. The beast roared fiercely before it charged him. Before he knew what was going on, George was being crushed under one of it's massive clubbed feet. It came on one of his feet, and then the other as he tried to get away, a gut wrenching scream erupting from his throat. This must have been what Fred was feeling before he was crushed to death, but he never had the chance to scream.
He was able to drag himself from directly underneath the legs and tried to pull himelf to safety. The Quintaped, still howling in pain was still able to see him and gave a powerful kick, lauching him headlong though the glass window of Madame Malkin's and into a mannequin display. The warmth of blood spread from smaller cuts all over his body and felt a large piece of glass enter his shoulder before his head hit the floor with a dull thud and he blacked out.