I've never lost my one since I aquired it many years ago and my father never lost it either when he was given it as a boy. I actually found it in my grand fathers old wooden tool box in his shed. I was pretty happy when my grand father said I could have the knife saying that my dad didn't appear to need it any more. grin

BTW the knife is the older non locking version and is probably over 50 years old or older.