Aye! There's a famous Russian proverb about this (ofc had to be Russian):
One day, a poor villager happens upon a magic talking fish that is ready to grant him a single wish. Overjoyed, the villager weighs his options: "Maybe a castle? Or even better—a thousand bars of gold? Why not a ship to sail the world?" As the villager is about to make his decision, the fish interrupts him to say that there is one important caveat: whatever the villager gets, his neighbor will receive two of the same. Without skipping a beat, the villager says, "In that case, please poke one of my eyes out.