@dlowan,
Oh my.
Came home tonight and found kittens not in study, but in living room.
Discovered I had left door from bathroom into study open, but closed the door from corridor, which is the one the woolies are used to using.
It was clear from the used trays in the study that woollies had taken a while to find the open door.
Then they had obviously forgotten how to get back.
How do I know this?
Because someone had clearly needed to pee.
Where had they peed?
On the empty 30 liter kitty litter bag which I had left out for them to play with!
This is large and two ply.
Pee hadn't made it through, but was pooled safely on the paper.
GOOD woollies!
Or wooly.
Oh...and the stove element that I began worrying that I had left on just before I got to work was indeed on. Grrrrrrrrr........
Nothing destroyed.
Woollies quite anxious when I got home.....maybe not ablento get to Loo, or the change in routine.
Poor woollies.