Wasn't that kind of the lady, to do that? To her, that hen would be as dear as the family cat or dog. It obviouisly did not matter that the hen would not lay again, nor that it would cost a fortune at the vets.
Through my work as a co ordinator for the hen rescue, I come across many similar tales. When one of their girls die, or the fox gets it, they are absolutely devasted. When you only have a handful of hens in your garden, they do become special.
But well done to this lady, and all the others for caring!!