Why do you pull out your hair when it is turning grey?

To hide the fact you are going grey without having to dye your hair. You pull it out so no one sees it and hope a *pick a color* grows back. But this only works for so long because soon after you start plucking the hairs it's like it's a trigger to the rest of your hairs telling them to look out because they may be next so they start ganging up on you and start coming in faster and faster until you'd be pulling out whole patches of hair at which time you finally decide to either let it go grey and see if it's a nice looking grey (some shades are beautiful) and if not then decide what color you want your hair to be and be free! Color whatever shade you want.

And outside of the fact there was a litle bit of humor in there, that IS why you pull your hair out when it's turning grey.