I'm looking for opinions on the best gun lock (not a case or safe). I'm basically looking for a lock that will theoretically let me leave a loaded gun on a night stand with young kids around while making the gun completely harmless yet will enable me use of the gun in less than 2-3 seconds. THIS IS JUST A THEORETICAL IDEA. PLEASE DON'T FLAME ME ABOUT GUNS AND KIDS. Locks with a key are a problem since they require you hiding the key yet keeping it accessible and in a situation where you need quick access to the gun they are cumbersome. Locks with a code take too long to operate. Is there anything that is fingerprint operated?