Intended for use on external doors that are full-height double glazed.

Simply peel off the backing an affix to the inside or outside of the door at an appropriate height.

Then frighten the cat.

The cat makes a dash for "safety", only to discover that the cat-flap isn't.
-- 8th of 7, Oct 23 2016

Tsh-boom.
-- MaxwellBuchanan, Oct 23 2016


Next time use a catapult.
-- Voice, Oct 24 2016


You are making the unwarranted assumption that the cat knows that something that looks like a cat flap is probably a cat flap. However, what if the cat had never before encountered a cat flap? Why should it run to your fake flap instead of elsewhere (away from the frightener)?
-- Vernon, Oct 24 2016


A stick on "junk yard dog" sticker for existing cat flaps could get you hauled in to court on cruelty to animals charges.

You would get to meet new people (cops, lawyers, activists, jailbirds ).

+
-- popbottle, Oct 25 2016


Along these same lines, the toilet bowl sticker that one places atop an end table.
-- bungston, Oct 26 2016



random, halfbakery