Got my FS55, while unhitched and parked next to my own house... It had a lock on it, but it has vanished too. Odd.. passed on the brand new FS80 and BR600... wonder if that lock was actually locked? The other stuff is locked with the same type, which will be replaced tonight, probably with those types that are real hard to get cutters onto. Oh well... it was time for a FS110 anyway.