Just dropped DS off at preschool. As I opened a door a woman I'd not seen before tried to walk past me into the building. We've been asked not to let people in without asking them who they are (reasonable request, but not a particularly easy thing to do in reality!)
I asked her if she was there to pick-up her child, she gave me a filthy look and said "I'm here to see ". She was obviously really offended but I don't think I did anything out of order? (Did I??)
I said "No need to look at me like that, I'm not just going to let a random stranger into my kids nursery" and walked to my car. She stood in the doorway giving me daggers as I left.
No I wish I'd not let her in at all - I did see the manager as I was leaving, so no issue there. Tempted to query it when I pick up DS though.