I Have experienced the same problem which half the customer who bought iPhone 6 have already gone through. My phone's glass cracked in the very first fall from less than 2 feet height that too within 10 days of its purchase.
I Read some intellectual guys writing Apple doesn't employs ghosts to knock your phone out of your pocket or hand. Well I think Apple definitely doesn't need to employ ghosts as some of these intellectual are sufficient to rather completely destroys Apple's already deteriorating image.
Like any tobacco company, Apple should mention a WARNING in bold on the packaging of each iPhone 6 that it should never be used without a protective cover and should always be chained to your hand or pant so that it never falls on the floor. And if it does than Apple is not responsible for your inconvenience as we built a product which is meant to fetch us more revenue through high cost of repairs.
it should also mention on their paclagging that the actual cost of purchasing and maintaiming an iPhone over 3 years is $649 + $109 x 36 months as you are most likely to drop it once every month. People who have little kids at home should multiply this cost by a factor of 2 at least.
People who are considering to buy iPhone 6, please dont waste your time and money on this inferior quality product. Apple is no more the same company which it used to be under Steve Jobs. Now it is no more than any Chinese company which is trying just to chase its competitors in a bid to catch up with the pace of changing markets And consumer choices.