Some examples of each invention, poorly made or improperly used implements, old models, worn materials, often fail.
Some inventions do not perform according the inventor's intention.
Most inventions do not fail.
However, nearly all of them, including shoes and spoons, can and will be put to some nefarious purpose.
Some inventions do not perform according the inventor's intention.
Most inventions do not fail.
However, nearly all of them, including shoes and spoons, can and will be put to some nefarious purpose.