One of my children does part-time work for a catering company.
They (keeping it vague for reasons of confidentiality) rang up the company at lunchtime on Friday to warn them that they were starting to feel ill. They called again at two to confirm they felt worse and couldn't make it. A teacher at school noted that they looked sick in class. They came home and went to bed after school.
When starting the work they signed a contract setting out that they would be fined £20 for a shift cancelled within 48 hours unless they could provide proof of illness. Now obviously we didn't visit the gp with what was clearly a virus, unpleasant and debilitating, though it was (not gastric, to make it clear), but would an email from the teacher who noticed DC looking ill at school be reasonable proof of illness? They have to self-certify, too.
I am annoyed about the fine. I know the contract was signed and I did explain to DC the implications at the time of signing, but all the same. It seems that people who shouldn't be working are being pushed into it.