We have a member of support staff who stays up to 3 hours later than she needs to. She says she's never been a clockwatcher and I'm struggling with what to say to her to get her to leave on time, this is for her own wellbeing and that of the teacher she works with. The teacher has expressed a concern that she cannot get on with her own work after school as this staff member is constantly talking to her after school and faffs around, getting in the way so the teacher cannot concentrate on getting ready for the next day. I fully appreciate what the teacher is saying. I am concerned that this is causing my teacher stress as she has said she feels she is drowning as she can't get on with what she needs to do after school as she is constantly being interrupted. The staff member is trying to be helpful but doesn't do anything after school that takes that length of time and the teacher just wants to be left alone. Any advice about how to approach this in a nice way? I have had a conversation about her wellbeing and said I don't want her to stay so late, but I'm concerned if something isn't done soon, my teacher may go off on stress leave. Many thanks in advance.