DD rang earlier to say that DGS has diahorrea. I was due to look after him later while she works. He had been up several times in the night and was still unwell. I could hear him crying in the background. He is 9 years old but is on the autistic spectrum and finds illness hard to deal with. If he had a cold or flu I wouldnt hesitate, but clearly dont want to have diahorrea.DD said that she would understand if I said no, but then went on to say that she would not be able to go in until her husband gets in, meaning she would lose 3 hours pay. I feel so guilty for letting her down, and feel like an unreasonable, uncaring Gran. Had to get this off my chest.