I really think that you have little understanding of security. Stuff like this is a deterrent not a be all and end all. Any key lock other than the very high end ones can be opened very easily and quickly by anyone with half a clue (google for bumping key to see proof). The point of breaking it open is moot and silly considering one can just walk off with it. Will it keep kids from playing with guns, most definitely. Will it keep out a determined person, No! that is not its intention or intended use.
In the end, remember who and what led you down the path.