A quick 10-minute workout might feel like a failure on a day when you could’ve easily done 45 minutes but decided not to.

But 10 minutes on a day when the lord of illness has unleashed a diarrhoea storm upon the rest of the household?

On that day, 10 minutes is a success story worthy of a medal. And a paragraph or two in tomorrow’s newspaper. Probably a gun salute. And it wouldn’t be unreasonable to expect a cookie named after you.

Just like our approach to fitness has to be reasonable and fluid, so do our expectations for success.