MLeake, your statement divides opinions into those who think Wal Mart is wrong to have unknowledgable people working the gun counter, and proponents of individual responsibility.
Believe it or not, there are people (I'm one!) who fall into both categories. Having a certain opinion doesn't give you a moral monopoly on individual responsibilty.
As a matter of fact, a truly responsible individual will recognize that there are those who are not responsible, and will seek to mitigate the harm that these less responsible people will inflict on themselves and others. This is where Wal Mart should be. A lot of people go to there local gun stores with questions, and the personnel there will generally be some help. A person who mistakenly believes that Wal Mart is anything but a hawker of cheap goods just deserves to be out of luck, I guess? Foolish, foolish buffoons trying to empower themselves by purchasing a firearm! HA!! Who do they think they are?! Don't they know that firearms are the exclusive domain of armchair commandos with really cool screen names? Oh, well. If they are unknowledgable about The Craft, and they do harm to themselves or innocent bystanders, that's there own fault.
What a way to expand support for America's shooting culture.