Cats licking plastic - are mine the only ones that do this?

And why? Why do they do it? They sit there and lick shopping bags, baggies, etc. (yes, I do throw stuff away, but I have kids who leave stuff out, and if there is a pack of paper towels sitting on the floor, they will sit there and lick that wrapping!). Can this harm them? Does it taste good? Are my cats insane? show more And why? Why do they do it? They sit there and lick shopping bags, baggies, etc. (yes, I do throw stuff away, but I have kids who leave stuff out, and if there is a pack of paper towels sitting on the floor, they will sit there and lick that wrapping!).

Can this harm them? Does it taste good? Are my cats insane?
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