Periscope Depth

she's well-acquainted with the touch of a velvet hand like a lizard on the window pane

Could anyone here who (1) owns a cat and (2) puts up plastic sheeting over their windows to block drafts tell me how to keep #1 from colliding violently with #2?

Frankly I’m amazed ours survived a whole week, but Tomas has finally managed to shred both sheets in the living room. I have replacements, but I’d like to hear your cat management strategies.

Mine: pick him up (gently), carry him over to the window, press his nose against the shredded portion and say, “NO” in a stern voice. I’m not convinced this will do anything.