We laughed at all of these stories, as Daddy was a doctor and exploded all the nonsense about apple trees growing out of you etc.
We were taught not to cross roads at angle, not because it was a sin, but because jay-walking was an offence according to the Road Traffic Act. For years I believed it was illegal to cross a road except at a pedestrian crossing, although no-one actually had said this to me.
Even Daddy's medical knowledge had to give up regarding the prohibition on bathing or washing hair during a period. That tabu was rigourously observed by my mother and taught to my sister and I.