Don't show a friend your gift, or your bag of money if you still want to maintain your relationship, but if nay, go on, and all you'll see is hate and jealousy, and you'll fight with him in the street like a dog and all you'll feel is regret.

As with all new inventions, there are upsides and downsides. The commercial drone is no exception. But until robust safeguards have been introduced to protect personal privacy from prying eyes in the skies, the true benefits to society of unmanned aerial vehicles will remain unrealised.