Woke up to see this on my bedroom ceiling! I live in a bungalow so it’s downstairs.
Just as I was wondering how to get it down, it fell off and fortunately landed on the floor rather than my bed! So I was able to scoop it up with some cardboard and chuck it out the back door.
No need to ask why I use this user name! I’ve had a problem of slugs in my bedroom for the past two to three years but this was the first this year - just when I thought the egg shells and copper wire at the edge of my carpet had sorted out the problem!
I think you have to wait to see the photos.