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Long life

Long life

20 August 2015

1:00 PM

20 August 2015

1:00 PM

I was saying the other week that my new hearing aids had come with a warning not to swallow their batteries, because this could be bad for you. I doubt if anyone would choose to swallow a battery, but such warnings against barely conceivable eventualities are now commonplace. Manufacturers rack their brains to think of new perils to which buyers of their products could theoretically be exposed.

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