I went to Petsmart to pick up some things for my injured baby, Donald, and I came out with this guy.
He has light stress stripes, but the store had pretty healthy fish otherwise. Some of the females were TINY, like, about the length of my thumb. Their fins were clamped, but otherwise they were pretty alert. There was only one fish that had anything I could see wrong with him, and he had fin rot around every single fin on his body. It wasn't that bad in most places, but in one there was a giant chunk and I figured that was where it had started...
I reported the fish to a worker (he was working in the dog aisle, no one was in the fish aisle because there were only 6 people on the job and two were being lazy) and he kind of looked at me like, "Really? A fish? Sick?". I just smiled and explained to him that the blackish gray outline meant fin rot and he should probably see a veterinarian. I think he realized I probably knew more than he did, so he went to take him to the back. Before he left he turned to me and said, "If you're buying a betta, you should ask someone to else you find a good sized tank and everything else they need." I just thought that was very good of him to say, and kind of showed that he cared about the little fishies even though he didn't know much about them.
On another note, I found a worker with the betta bug as well... She helped me find the right heater among other things and gave me advice on which brands worked and which didn't. (She has obviously been in this longer than I :P) I'm glad someone around here shares my hobby! ;D