Quote from Tsing Tao:
Sorry, disagree. No one knows the combination to my gun safe but me and my father (who lives 1000 miles away and has the combo just in case something happens to me). I will not share it with even my wife.
A responsible gun owner keeps the combinations of weapon safes to himself, unless he is fine with anyone using his guns (which is stupid).
Same in my household. Only my dad has a spare key and knows combo to my safe.