Your Date of Birth

Posting your date of birth on the sites like orkut/ facebook.. is so nice, so that our friends can see that and they will wish us on the same day... but have you noticed the importance of the date of birth? It is a very important credential you are publishing on the net to everyone.
You know one thing, in some of the banks, they will use the date of birth, if you dont remember the password. So I think, I dont have to explain more...