True in many respects. I go to college and am majoring in zoology. I work part time at PetSmart partly to make extra money and partly to gain experience. Before I started there I owned a number of books on animal care and have bought countless since. I'm constantly reading and have websites like this bookmarked for reference.
The thing is.....Well let me give you an example. A couple came in yesterday. They have a 10 gallon tank, had put a few goldfish in it, and they died within a few weeks. They only had the tank for a month. The tank had previously belonged to someone else, but the couple in question had bought a brand new filter, gravel, and ornaments. First I told them, their tank was too small for that many goldfish and then launched into a long winded explanation of the Nitrogen Cycle with various suggestions on how to go about it. I also recommended they set up a tropical community tank instead. Well needless to say, the wife declared she had had a tank years ago and there was a certain miracle liquid she put in her tank every once in a while and the fish always lived. She held it up and it was some sort of Kordon product called Clear tank or something like that, that claimed to improve water quality and provide helpful bacteria. I tried to convince her that a better way to go would be Bio-Spira and a good dechlorinater, but she wouldn't hear of it. Then the couple had a question about dog food for their dog that had skin problems. I walked them over to the highest quality food we have and explained to them why I recommended it. I tried to teach them how to read food labels to avoid ingredients such as corn, wheat, by-products, and chemical preservatives like BHA and BHT. The man said "Yeah, I ALWAYS read the food label." But in his cart he had a low quality brand of food which contains many of the above ingredients.
Well after all of this, (the couple had taken none of my suggestions by the way) the woman declared "Wow, you know a lot! We'll be sure to let you know how our tank works out!" And walked away. All of that for nothing.
Those are the type of people I encounter everyday. They listen to me prattle off a bunch of facts until I'm blue in the face, commend me for my knowledge and don't take any of my advice. I've grown very disillusioned because of it, yet I still try to give people the best advice I can hoping that someone, someday will heed it.
So while I understand where many of you are coming from when you talk of this "LFS idiots" I also feel like telling some of you to shove it.