I came across this shop today and found it quite original and amusing. It´s in Salusbury Road, London NW6. I hadn’t had lunch and was going to work in a recording studio next door to it, so I went in and bought some samosas from Mr. Singh(sbury). The shop seems to have existed for some time, and I hope Sainsbury’s have enough sense of humour not to sue the owners out of existence. There also seems to be a musical duo called (David) Marx & (Tracy) Spencer. See http://www.last.fm/music/Marx%2B.%2526%2BSpencer. I don’t know if they sing about revolution and evolution.