Here is my erstwhile little buddy on the wall, near the ceiling.
He (or she) is quiet and eats mosquitoes.
In short, a good housemate.
The little one comes and goes; now you see it, now you don't.
But one day, I, barefoot, picked up something from the bathroom floor and was startled to see the creature there instead of safely on the ceiling. Eek! I reacted by scooping him up and setting him outside on the front stair.
Now I kind of regret my harsh action . . .