I think your Perci is just "proving" that she is, in fact, a cocker!!
Cockers are known for loving to play with/ tear up /spread around paper - paper of all sorts and anything that is included with the paper.
(that's why I will _never_ understand anyone who tries to "paper train" a cocker for potty purposes ... just doesn't work because they've just been provided with our breed's favorite toy...)
Over the 17 years that Feather had lived with me- the bathroom trash has been mounted high up on the wall, where only an adult standing up can reach it; the kitchen trash is inside the cabinet with the childproof lock on it; I don't have waste baskets in the bedrooms any more; any trash by my desk gets emptied into the kitchen trash before I go to bed in the evening; and I was cured of leaving magazines on the floor beside my bed. Thankfully she has never snatched a book off a bookshelf to shred, like one of my fosters did!
All of this came in very handy and I was fully prepared when the grandsons came along...
dog-proofing my house was way more extensive than child-proofing-- I've never had a toddler chew the remote, or unzip my purse, or snap computer cords in two in one bite, or gnaw on the edge of a bookshelf, or unravel the doormat ... but I had fosters do all of those things!
But the paper- that is pretty much guaranteed!