It was the middle of the night.
I was in the middle of a very odd dream.
I dreamed I was on the rooftop somewhere in Italy. It was an ancient building made of stone with ornate ironwork and a cobbled sort of roof. I was successfully climbing down from the great height of the roof and had just managed to barely make it to the street by climbing down a lattice of ironwork... and finally stepping onto the hat of some character below.
Then suddenly (in real life) I hear a scurrying somewhere in the house. It must have been a mouse. It had to be a mouse. Maybe it was a roof rat! Gulp.
My brain changed gear... making the painful transition from the weird dream to the scurrying noise. My mind began clicking over all the possibilities. A whole new set of problems presented itself. Such is life... filled with problems. The transition from one mind to another is always a shock.
Eventually I fell back asleep. Dreaming is preferable to being half awake in the middle of the night and thinking about a mouse.
I do have the family mouse-catcher. But one can't count on my cat to catch any mouse.
Being deaf, she couldn't hear it. Being elderly, she's too bored to think about it. A mouse would have to run directly over her nose to get her attention.