Large out of town supermarkets are fuelled by three factors: a commitment to low low prices, quality customer service and a barely disguised hatred of humanity.

Take tesco extra in Watford. There's at least 500 tired, harassed individuals in a state of barely disguised misery. So they don't play something soothing, like 'mad world' or realistic 'this is the end' but 'merry christmas everybody'. For sheer crassness it's like playing 'always look on the bright side of life' in an icu.

Any benefit that may have been gained from that at best questionable choice was immediately cancelled out by the announcer, who called for a checkout runner during the final moments of the song. May i suggest an alternative to 'every little helps'? 'tesco:we hate you. Scum.' at least it's honest.