"4 The Applicant, Miss Wright, is a social worker … 5 The Respondent provides residential care for children and young persons between the ages of 9 and 18 years. 6 In April 1999 Miss Wright was interviewed by Miss Awan and Mr Walby, then Care Manager. The Tribunal unanimously found that the Respondent was at that time seeking a social worker to be available to work in its home on a casual basis. It further found that Miss Wright was told that this is what was required. She was available for about 15 hours a week and wanted to work from 5 until 10 p.m. It was agreed that she would be engaged as a casual worker. She was one of a number of such workers. 7 Miss Wright had to fit her pattern of work into that of her partner who looked after their son while she was working. She would inform the Respondent of her availability and they would arrange for her place on the rota in accordance with this. 8 Her pattern of work varied as to the days, but, with some variations, she usually worked from 5 until 10 p.m."