Dear Sandy,
Sorry for the delay but bowels are not my favourite subject (yea I "raised" them). Yup groundless superstition or old-wives-tale.
Dunno if the slice of Lifebouy soap worked on brother's constipation. They must have had faith as mam carried him, like a sub-machine-gun, to gran's outside toilet.
Very primitive knowledge of anatomy in those days. Mam always warned me if I swallowed chewing-gum it would wrap itself around my heart-strings whatever they were.
ANYWAY, doubt if you've got a real black-eye now - it takes a lot of veinous blood to cause one. All better now I hope.
Kindest Regards,
SIQ.