There have been many myths and legends since decades among us. Some hold a very logical meaning where as some are soo illogical that after hearing them we may wish to bang our head in wall.
In the same way there is a popular myth among polish people. These people have a “Polish Plait”, it is a kind of hairstyle which is achieved by mating their hair together to form a deadlock-like mass. These people believed that such a mess of hair keeps evil spirits from entering the body by containing within knots.
You can still see such plaits roaming around in America. Although these plaits are not much effective in keeping evil away but sure are effectively stinking the streets.