Every time I see this picture I have a chuckle and think of my Bailey-dog.
Funny story: At our house we must ensure that the toilet door is closed securely at all times. During the cooler months the frames swell and then the door will not shut without a firm tug. Bailey-dog knows when it isnt latched closed, and will push open the door. One evening I came out of the bathroom, which is located next to the toilet room, to find a trail of toilet paper going from the toilet, through the laundry, down the hallway and into the second bedroom. At the end of the trail of toilet paper was Bailey-dog, looking terribly pleased with himself.
I dont know what it is about toilet paper, but dogs seem to love it.