Thank you Sapphire for letting us know about this topic. Friend of mine asked me about this and I was like hmmm....interesting subject.......when you mentioned about this I called my friend to know more about this and he told me he got this topic in YAHOO ANSWERS..... - http://answers.yahoo.com/question/index;_ylt=AhxIviHYBT.SsApmCifF7fsezKIX?qid=20061121155642AA9yYO2&fr=hp&cp=2&tp=1045#all-answers However.....this topic is interesting and would like roll on....will jot down my opinion soon. Till then keep rolling:)