People were boycotting Waitrose, allegedly. It wasn’t over the cost of a tin of beans or a controversial Christmas advert but over the use of self-checkouts. For some it’s hard to imagine life without them, for others – they’re to be avoided at all costs. Back in August, when Waitrose in Paddock Wood added an additional self-scan till, many took to Facebook in support of a self-scan boycott. The supermarket giant claims the installation was to serve the increasing number of people choosing to use unmanned tills. It currently has four traditional checkouts for those who want a personalised serv…