Will you bring back the haircut with you or do you leave the haircut there?

Is the haircut the hair remaining on your head in it's new shape? Or is the haircut that hair that is no longer an attached extension of yourself, now swept into the barbers' circular file? You could bring the cut hair back with you, and you would have the "whole" haircut with you. But, if the the haircut exists as two parts 'current hair' and 'cut hair', then the hair cut is defined by something of the past and present. We had the action and have the results of a haircut simultaneously. Not to mention (of course) that the hair is continually growing and the haircut fades is *gone at the moment of the next haircut.

If noone knows what you looked like before, don't you loose the "haircut" and gain a "style"?