Dogs that love to go out and collect items are often insecure.
These dogs are frequently collecting items that the owners have touched or worn and are active in this behaviour when the owners are out.
They surround themselves with a object barrier of their owners scent.
Great absorbent material for this scent includes tissue paper, books and t.v. remote controls - which have little gaps around the buttons to capture skin cells.
These items also get reduced down in size (chewed up) so they can be spread out, to form a greater barrier (as well as chewing as an attempt to dissipate anxiety), Selina McIntyre, Dog Behavioural Consultant & Dog Trainer, Dogs Best Friend.