No you won't want to try driving the handle backwards out the opening in the conventional way, but there is a solution according to the Norwegian smid and carpenter's axe historian. By knocking with a stick, for example, it's an intimidating prospect I know, along the length of the socket the vibrations will eventually break the grip and the head will loosen from the handle. This is one of the advantages of the whole concept of tapered sockets. The head coming loose is not problematic and is in fact desirable at times, because it's always re-seatable, (when you haven't prevented the possibility by creating a hard shoulder there and so long as the angle of the socket's taper is not overly open). A breitbeil, it's the same.