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Guilt, like a misplaced loyalty is an emotion where we just can't help ourselves. The shiny suited Gavin had been there for more than an hour and Sam’s initial amusement was wearing thin. Anyone who has lived in rented accommodation knows the attraction of a free carpet cleaning and he had signed up in the confidence that his practised assertiveness would soften the inevitable hard sell. In fact, Gavin had turned out to be better value than expected, as instead pushing simple carpet cleaning, he unveiled, The Kirby, a cast aluminium art deco classic vacuum cleaner, refined from an original 1930s design. It was a thing of beauty but even this was nothing when compared to the entertainment of Gavin’s demonstration, which are involved sucking up dirt into little squares of black felt, carefully placed in a special filter. He demanded demonstrations on the carpet, the furniture and even their mattress and when the results where impressively disturbing, he took care to suggest that this was not as a result of slovenly household cleaning but of the unique and exceptional effectiveness of his product.

