In 2009, Burger King launched a campaign that if you unfriended 10 friends on Facebook, you were entitled to a free Whopper. The person you unfriended would get a message telling them that their friendship is worth less than a Whopper.
A Nepalese doctor has restored the sight of over 100,000 often poverty-stricken people in the last thirty years across Asia and Africa using a 5 minute procedure and an inexpensive artificial lens.