No Comment!
Most of us, when faced with rumor (especially negative ones) respond through this overused statement. Ironically enough, this phrase does not offer much statement at all. As rumors themselves are shrouded with uncertainty, an uncertain answer such as this could be the worst way to respond to a rumor. In fact, it could only trigger people to hypothesize all the more: is the person concerned saying this because s/he is afraid to confront the rumor, or is it simply a nonchalant attitude that creates the idea of being unaffected due to its false nature?
Whichever way you choose to see it, rumors will continue to exist – at school, in the workplace, at home, within the streets, basically just about anywhere people live and exist. A quote I read implies the idea that gossiping and creating rumors are the lowest form of conversation one person can engage in. And hence, it is often considered taking the high road when you choose not to respond.
On the other end of the spectrum, choosing not to respond to rumors would only encourage the rumor to thrive. Without the opportunity to retort, one can never clear the clouds of confusion and so, most people would accept the rumor as fact.
For a better retrospect, you can read an article on rumors by clicking here.
(Note: Thanks to Dean for providing me this link.)