In that case, shouldn't he be suspended upside down, like a bat?
Of course, that would risk having his remaining marbles fall out, cascading and scattering all over the room, becoming contaminated with potato chip crumbs and cat hair.
The cat hair and potato chip crumbs might make a good binding agent to help form a plug when the time comes to get everything closed back up.
At the turn of the previous century, a couple of my great aunts were out cutting the heads off of chickens. The axe-wielding aunt accidentally clipped the head of the chicken-holding aunt. The axe-wielding aunt quickly plugged the hole with the nearest thing she could find, which happened to be a bunch of spider webs. While the chicken-holding aunt was never quite right afterwards, she was still around for a good many years afterwards.
I doubt Skippy has any spider webs lying around, so I could see the usefulness of grabbing what seems like the next best thing for him, which would be any number of cat hair tumbleweeds blowing around in his thimble-sized apartment.