Dear Economist: Can I press my char into ironing for free?

My ironing lady – housebound and bored – has taken to phoning me up and begging me to bring round my bed linen for ironing. As I return to pick it up again, proffering a pair of crisp £20 notes, I quip: “But Sheila, aren’t I providing occupational therapy and shouldn’t you be paying me?” She laughs, pocketing the banknotes, and glows with satisfaction as I take my pile of pillowslips. It is my social duty to continue this relationship, but why do I feel I am the one being flattened?

Flora Fortis, London

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Tim Harford’s blog

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Tim, also known as the Undercover Economist, writes about the economics of everyday life.