Congregatio: I promised to tell you how this thing works:
[Photo spray to scare cats from wires and furniture]
I tell you: this piece can not only scare off cats from wires, but also owners, and neighbors in a radius of a hundred kilometers, and can generally be used to drive demonstrations.
It smells like... I don’t even know... a wet potato bag with some chemistry. Marcus walks around the sprayed place along a wide arc, unhappy with his nose.

Offlerthekrok: We tried to squeeze something like that on the couch. Kosharik obviously did not like the smell, so I beat him, turning his face as far as possible.