This morning, the dog was off the extendable lead and running back and forward across the path some distance in front of her. Slowed to a crawl to avoid mad, darting dog. Noticed that as I approached her, she made no attempt to walk into my way or whip out her torch.
In fact she didn't even seem to see me. I said 'Morning !' as I went by, but she didn't even notice. As there was no torch being shone at me, I DID actually get to see her face. Middle-aged and, to put it bluntly, she looked a bit simple* - which might explain the weird behaviour.
(* possibly not the most PC-way of putting it, but I couldn't think of another way to describe how she looked !)