When I was in the UK years ago, a friend offered me a slice of bread with a creamy brown spread on top.

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"We treated a slice of bread in the device, we then checked the mould that was in that bread over time against a control, " he explained.

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And how much is in a slice of bread?

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The Daily Mirror refers to Mr Mitchell as being "toast" as a result of having to quit his post - and just to make the point, it prints an image of the ex-chief whip burned into a slice of bread.

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Those who walk into the kitchen in a state bordering on panic and breathlessly eat slice after slice of bread and butter not even tasting it until the panic can be drowned in an almost meditative routine of chewing and swallowing, spooning and swallowing.

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Traditionally, crayfish tails are plucked from their shells and slipped onto a slice of buttered bread with a sprinkling of dill and a squeeze of lemon.

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Other options include frozen or regular yogurt topped with dried fruit and nuts, a big slice of banana bread and milk, or even a bowl of pasta tossed with olive oil and parmesan cheese.

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Here's a photo of someone using the computer to slice bread.

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