It is said that the folk design of "The Five Fortunes Visiting" used to feature five bats symbolizing wealth, fortune, longevity, happiness and a good death. However, the one symbolizing a good death has gradually become taboo, and most people now prefer to put only four bats in the picture.
據說民間圖案中的「五福臨門」，五隻飛翔的蝙蝠象徵福、祿、壽、喜和善終，但漸漸地，善終反成禁忌，一般人在裝飾時寧以四「蝠」了事。