Most of us carry cell phones, everywhere we go. To work, to the library, to movie screens and even the bathroom (whether you accept it or not). But sometimes, when you are taking a stroll or are busy in a meeting, you suddenly think that your phone just vibrated and you have missed some one's call. You panic, thinking that it must have been really important and when you see the screen, there is nothing, no missed calls, not even a text message.

Ever wondered why does this happen? Ever wondered, what it is called? Ever wondered if you are still sane?

Here's the answer, phantom vibration.