My cat always chews on cardboard and plastic. :|

My cats try to eat non-edible stuff.
This one time my female ate ribbons, and when she shat them out they were still ribbons,but shit covered.

D:

i have a cat that does that, and i think he taught two of my kittens to do it too.

They usually chew on the cellophane from cigarette packs, but they do get ahold of smaller things, just do your best to keep and eye on them, dont leave plastic stuff on the top of garbage cans, etc.

My cat hates plastic!
but when u see him doing it, squish him with water

We have a whole yard full of catnip. As soon as our cats start fighting, I reach into an unreachable drawer and pull out enough catnip for each.

Our cats never chewed on plastic though. They always teethed on my fingers D: