If you can see this cat, you are at the top of the wibbly trof ladder.
Drawn on top of the shutter casing, which I made a point of distributing some of my weight to by leaning slightly on, whilst doing my drawing.
Especially when I was stood only two rungs from the top with nothing to grab hold of, should it choose to slide dramatically away from beneath me.
I know this ladder from last time I used it, and made the mistake of trusting its natty little stabilising bit at the bottom. Not so natty after all, it seems...