Lucas''s bawdy humour takes a darker turn in this work. She uses a variety of household objects to produce a witty metaphor for sexual activity. However, the comic references contrast with the sobering presence of a cardboard coffin. The title refers to a seminal text by the psychoanalyst Sigmund Freud. He suggested that the drive for life is matched by an equal and opposite drive for death, so that pleasure is bound up with destruction.