Not sure if I am being unreasonable about asking her to leave but I have a lukewarm aupair who, has started to improve (has taken time but there was progress this week ) but I have twice returned to an empty house with her front bedroom windows wide open. I have warned her about this before as she has done this previously. We have burglaries on our road, like everyone else. I also gave her the children/windows risk warning when she started . I feel a tad mean about asking her to leave as she has just bought a ticket home for Christmas and has arranged for her boyfriend to holiday near us in a few weeks. This is a good reason to ask her to leave....?