I've also heard that if you are bleeding from say a minor cut, and you take a short cut across a river thats occupied by ''Piranahs''. William hills are offering 5000/1 that you don't make it to the other side
They are real bad luck if you see them in your chicken house.
I must have been luckier when I lived in Birmingham cos I saw them everyday. Mind you I did win �250 from Take a break and a �1000 off the TV. Since then I've only won �25, so perhaps it's true.