I have an indoor cat. She greets me at the front door, like a good indoor cat.
Except this morning, when I returned home in an unfamiliar car, from the wrong direction. As I got out of the car I saw my good indoor cat barrel down a treetrunk, scoot across the lawn, and leap up a wall and through a window I didn't know she could access.
Then she demurely greeted me at the front door like any good indoor cat.
How long has this been going on?

@Auntienelle
Many cats do what they want.

I am worried about one of my two pet cats. A tumour has developed on her milk line and has broken open bloody. To the vet tomorrow.

Greetings from Schleswig-Holstein/ Germany to Brisbane.

@Hans oh no! I hope it isn't too bad at the vet. Best wishes.
@Auntienelle
Vet: Today at noon (01:00 local time CEST)