After reading thorugh this thread im realy appalled at how many people will sell a fish and let them walk out the door knowing their going to be dead. I personally feel this is inhumane and should be illegal. I also think that if your company has a policy for profit without a balance of ethics it should fail miserably.
My LFS will flat out ask you what tank you have, the conditions of the water and the inhabitants. If it doesn't feel kosher to you, she won't sell the fish no matter how hard you beg.
I did go to my local Petco once for a couple hermit crabs because the LFS was out. When the girl asked me how big my tank was (8 gallon established for over a year, beautifull nano cube) she denied my purchase because "no one can manage a saltwater tank under 50 gallons succesfully."
With that being said, alot of LFS and Petco representatives feel that they are "god" because they think they are "right" and work in the store as a "professional" (like the lady in the freshwater fish dept at petsmart). In my opinion the only saltwater professional is a marine biologist, everyone else is just trying hard.
I also don't think it's appropriate to try and upset a customer, you can win more people over with gentle words than scorn.
As far as this thread goes, it doesn't appear that anyone is the above, and I really enjoy reading it. Keep posting I love the stories. I'm just trying to bring up the fact that there are two sides to every story. A lot of people have a basic mentality of "a fish goes in water, like I saw at the lake", and they lack on the principle of fish diseases and water chemistry.
Thats my two cents