Employee comes into work. Is told which task he is rota'd to do, that the employee has been fully trained to do.
Employee then turns around and states
"I cannot do that anymore as I am stressed, I don't earn enough money and I have stress and cannot perform that task".
The task in question is not difficult, demanding or in any way different to any others that are required, and has always happily been done up to this point, without issue.
You then spend 15 minutes ascertaining what the employee feels they can do without being stressed for the remainder of their shift, move everyone else around to get other stations covered.
(So as not to be accused of drip feeding the employer pays all employers well above the minimum wages and believes in a living wage for all of its employees)
So, for what reasons would the employer NOT be allowed to me somewhat peeved by such a statement?