A MUSLIM store worker refused to serve a customer buying a children’s book on Christianity because she said it was “unclean”. Shopper Sally Friday felt publicly humiliated at a branch of Marks & Spencer when she tried to pay for First Bible Stories as a gift for her young grandson. When she put the book on the check-out counter, the young assistant refused to touch it, declared it was unclean and summoned another member of staff to serve instead. Mrs Friday said she was so upset that she has now complained to the store’s management. Last night politicians and religious...