Kit-Kat, tired of me reaching my handup through the door at the bottom and stealing their candy, has decided to call in the big guns: namely, human vending machines. 
Don't expect these things to pop up on every street corner though; they are part of the 'Working Like a Machine' campaign that's being run by Kit Kat to show how people need a break from the monotony of day to day life.
The idea was stolen from Japan like everything else that is awesome in the world and makes me want to stick my hand up in a machine more than ever. Whatever, human vending machines need love too.

Kit Kat Unveils Human Vending Machines In London [gizmodo]