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>>>My friend Carol Harney whom I met in Kindergarten in Catholic School was left handed. Sister Mary Saint Stanislaus would hit Carol over the back of the left hand with an 18” ruler for not using her right hand to write or draw. The good sister said, “The left hand is the hand of the Devil! Your guardian angel is on your right side and the devil is on your left side”!
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>>>It is all about conditioning. Yes sir, those 18” rulers taught us many things!
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>>My mother went through the same thing. On the bright side though, she grew up pretty well ambidextrous.
>
>But with a nasty twitch and fear of people wearing black? God, nuns were scary weren't they! :-)

In my mother's case it was a secular public school, and while the teachers may have been religious, I think it was just more of the way things were. See how religion infests colours everything else?