LONDON, ENGLAND - JUNE 09:  A general view of a set of metal spikes outside a private block of  residential flats on June 9, 2014 in London, England. The metal spikes which have recently been installed are believed to be to deter homeless people from sleeping in the alcove, which is situated outside a block of private flats in Southwark, London.  (Photo by Dan Kitwood/Getty Images)