You're welcome ^^ I don't know, I always knew those things (I even know parents of friends of mine who were obliged by their own grandparents/parents not to use left hand when they were child), and the whole "Satan" stuff, I think here in Italy almost everybody knows... but since it's something very related to Church I honestly never thought about these superstitions having a worldwide extension (I guess I've been a little a slowpoke too)