At 02.30 this morning we were woken by Blip launching an attack, complete with her rebel yowl and hissing, in our hall.
We staggered out of bed to investigate, at a complete loss as we were locked and secured for the night. We found nothing unusual, except Blip sitting in the hall.
I didn't get back to sleep immediately and was turning over in my mind what Blip could have seen, so I got up and went back to have another look around. I found Blip sitting on the table staring fixedly down the hall - at the carrier back full of old clothes I had put by the front door to take to the clothing bank this morning! Looking at the bag in the light and shadows from the front door, I could imagine that I was looking at a truly enormous black cat - I'm sure that's what Blip must have thought.
I went to the bag and made a major production of rearranging it so that Blip could see it wasn't a cat. She settled down after that, but I swear she looked embarrassed