I wish all fishkeepers were MFK's. Then the fish would be as happy as we are.
But on a more serious note, I was at my LFS yesterday, and saw one of those mother/child combos near the fish section. You know, the ones buying the tank, filter, food, lights, and fish all at once cause the kid wanted a fish on the spot. The mother had a shopping cart with a 10g, accessories, and was in the process of asking the lady to bag her 5 RED BELLIED PACUS!!! She liked them cause they looked like piranhas. After the store lady told her a 10g would be fine, I respectfully intervened. In all politeness, I told her that a pacu, much less five, would grow way too large for anything less than a 300 (even that is pushing it). At that point, the store lady confronted me, and asked me to leave the store, since I was harrassing the other customers. I implored once again for her not to take the fish, but was then escorted by the manager outside. As I was in my car ready to leave, I see the lady and child walking out, the child jumping up and down in excitement, holding TWO BAGS with 4 or 5 pacu in each. May God have mercy on their souls.