Never assume you have hidden anything from your children. They are naturally curious. Always lock and store bullets separately from your gun. Young children can figure out how to load a gun. Keep a gun lock on your gun after it is unloaded.
Gun locks can provide a false sense of security.
All it takes is forgetting to lock a gun just one time. Or leaving the key where a child can find it. Always be diligent when using a gun lock. Make sure children don't have access to the keys to gun locks and gun and amunition storage areas. Even if you don't own a gun, talk with your children about the danger of guns if they find one while playing or at a friend's house.