>>Now, the Arabic culture before Islam had association between left is bad right is good where some of the story been told that when some people leave their house and see a bird they throw a rock at it if it fly left then it will be bad day and the person will go back to his house.
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>>I would not be surprised that some idiot people still associate lefty with evil and try give it a religious cover.
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>I've heard stories of people traveling to Egypt (unknown when - maybe anywhere between the fifties and the eighties) being warned to never offer left hand for a handshake, because the left is considered unclean.
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>This is what I got - just a story, no corroboration nor proof to the contrary.

I have heard the same thing -- "the wiping hand."