Does the headline mean, if you’re a convict, don’t cook? Lots of convicts cook. So I checked the dictionary where I found an Australian/New Zealand definition for crook: a situation that is bad, unpleasant, or unsatisfactory, or (of a person or a part of the body) unwell or injured : a crook knee.

It means if you’re sick, don’t work.

With the chill of winter well and truly upon us, the risk of viral gastro contamination heats up, (New South Wales, that’s in Australia, includes Sydney, and it’s what they would call winter right now) Primary Industries Minister Steve Whan warned today as he urged chefs and cooks to take care in the kitchen during the peak viral gastro season.

"This warning applies particularly to those food industry professionals who come into contact with the preparation and service of food for hundreds, if not thousands of people," Minister Whan said.

"If you’re crook don’t cook is a good basic rule to apply in the workplace."

"Under the Food Standards Code it is illegal for food handlers to handle food when they have gastric illness. It is also illegal for food businesses to knowingly have staff working if they have gastric illness.

"The NSW Food Authority is aware of cases where staff have been asked to work when they were sick, or have not told their supervisor they were sick, putting many people at risk.”