What about the flip side? You know the clueless gun store clerks, or the outright deceitful ones. I remember looking for a 7mm-08 one time and the clerk, who I know knew better, trying to sell me a rifle chambered in 7.62x39 and telling me it was "basically the same thing". I remember watching a clerk talk a man out of a .260 or 7mm-08 for his very smallish ten year old son and sell him a .300 WSM. And I could go on.