My mum's at home on her own for two hours each weekday between me leaving for work, and the day centre bus picking her up. The trouble is she insists on opening the front door and watching down the road for the whole time - she will not sit and watch TV or read a book until they arrive. I've recently fitted a small door alarm to try and encourage her to shut the door, but it doesn't help. She just sets it off and ignores it (it resets after a while anyway so isn't perfect) or gets a neighbour to turn it off. I was wondering about a door closer - one of those spring loaded things that fits to the top of the door. That would close the door, but I don't know if she's savvy enough to wedge it open with a chair. Any other suggestions?