Theres another mum at the nursery that i've noticed since the weather has been getting colder has been leaving her baby in the car while she takes her toddler in or picks her up. Car is locked and usually parked at the end of the path so 10-20ft from the door, and she seems really blasé about it but it unsettles me a bit and i don't know if IABU and just overanxious. Its a small nursery and you can be in and out in a minute or two but then you never know when someone will pull you to the side and it will take longer. I don't know whether to mention it to somebody, but then I leave my baby in the car when i go into the petrol station to pay for petrol (about the same distance and time), so am i just over worrying?