#9. Feeding bread to ducks can be harmful to them
If waterfowls are fed artificial food, they may suffer from poor animal nutrition, excess fecal bacteria and their migration patterns might also suffer. White bread should be avoided specifically as it can lead to unhealthy diseases and distract them from natural food.
#10. Homosexuality and sickness
Even until 1979, homosexuality was classified as an illness in Sweden. But the people protested by calling in sick to work claiming they were feeling gay.