>>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.
>>
>>I would not be surprised that some idiot people still associate lefty with evil and try give it a religious cover.
>
>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.
>
>This is what I got - just a story, no corroboration nor proof to the contrary.

This thing about the left hand being unclean, has it's history way back in time in Egypt, but other places in Africa it's still the rule. In many really poor areas they still use their right hand to eat, and their left hand to clean their bottom.