according to the Concise Oxford English Dictionary 11th edition: quack = (1)an unqualified person who dishonestly claims to have medical knowledge; (2) (Brit. informal) a doctor.
i know it might seem a bit late. i never have a chance to thanks all of u personally...cause actually i duno who are those who share my birthday present..
yet i wish to say :THANKS GUYS, for this lovely present-----swatch watch------
thanks .... thanks.... and thanks...
and a thousand infinity thanks..... may god bless all of us;-)