I think that a lot of people take everything a bit too hard. I mean, yes, it's horrible, but foaming at the mouth screaming at employees isn't going to help. I actually have family that works at Walmart, although I don't know if that particular ones carries fish, and I know that they're given their own tasks and probably would be fired for changing fish water when they are supposed to be stocking shelves. If you have a problem with it, take it up with the person who's in charge with everything, and there's still no need to get rude. Many people aren't aware of the care a betta needs, and unless they're going to get one, they shouldn't have to. You can politely inform them, and maybe they'll change it. If they don't, just go shop somewhere else. By screaming and crying and carrying on, you're just making yourself look bad.
Ezekiel - Butterfly DT Male
Schnappi - Blue & Green HMPK Male
Midnight - Forest Green & Blue HM Male
Yuki-Onna - Blue & Clear CT Female
Powder - White & Clear DeT Male
"Why did they search for a new singer? Marco and Tuomas could duet and if they needed the female touch Empu could wear a dress or something." - Random youtuber, on Nightwish.