Because, this would be the first I have heard of that. Jillian, are you Jewish?
Of course it's the first time you heard it because you only read things that tell you what you already believe and agree with.
http://www.csmonitor.com/2007/0906/p05s02-wome.html
As to your question, how long have you been posting here??? i'm fairly quick with that information and shogie's referenced it at least 50 times.