HOW COULD THIS HAPPEN!!!!!SO DISAPPOINTING.....

I never expected this to happen not with Nestle, after a hectic day at work I decided to buy myself a BAR ONE chocolate just to get my sugar & energy levels back up & running....as im enjoying my BAR ONE coming to the my second last bite & I feel something like hair pulling through, it whitish in color & stringy....how upsetting this is especially enjoying something......how can this be possible....if it was someone else that would have put the whole thing in their mouth not knowing what they eating , WHAT ABOUT OUR KIDS???<br> All kids love chocolates & can we trust NESTLE...please tell me...