My husband brings me home gold fish from Walmart. I have told him 1,000 times not to buy fish from Walmart.
"Look what I got for you honey!, Isn't he cute?"
Well, I can't take them back to Walmart because they flush them..
So I will but them in a spare 10 gallon for a few days to treat them for IP's and then I will put them in one of my 20 gallons with my tetras.
I fatten them up (Usually coming from Walmart they look like hell)
I wait a couple weeks, until my husband looses interest. Then I will bag them up and take them to a local pet store that deals in pond fish a lot.
I donate them, but because it happens so often... usually whatever I buy, they take a couple dollars off, even if I haven't brought in any fish for weeks.
The last time this happened, my husband paid 4 dollars for the fish, and I made him look so nice that just a few weeks later the other pet store sold him for 14 dollars (and they usually under price their fish)
My husband does not notice because I have so many tanks going..he just figures I moved the fish.
I don't have the heart to tell my husband that I do not want the fish and that I cannot house them.....But I do tell him that if he want to buy me a fish, buy one for my schools like skirt tetras and glofish.....
But, He always comes home with a goldfish. Once, he did come home with a puffer...which started my puffer obsession

So, that was good.