Why is it bad luck to give fish as a gift?

Giving fish as a gift is considered bad luck in some cultures because fish are often associated with death and the afterlife, particularly in Chinese traditions where the Word for "fish" (鱼, yú) sounds like the Word for "surplus" or "abundance." Additionally, fish are seen as a symbol of floating away or leaving, which can imply a departure from the relationship between the giver and receiver. This belief can vary by culture, but it's rooted in superstitions surrounding luck and fortune.