I recently went into an orange shop where two of the fish were
suffering from Dropsy.

I told the girl behind the counter what was going to happen, how
painful it would be for the fish and how cruel it was. Apparently the
person who tended the aquarium had finished his round there and
wouldn't be back for two weeks. She allowed me to pop in, take the
fish out of the perpetual light where I left them in a dark tank and
treated them appropriately. Both made a full recovery and were
released into a larger ornamental pond. They both still live happily
there.

They also complimented me with a free topup card :- )