It happens. It sucks.
It's much harder for such a creature to unspool a roll that comes out the back. A cat simply swipes down on the roll. If it comes out the top, the roll unspools unabated. If it comes out the back, the roll just spins with everything neatly in place. Same with kids, although, having thumbs, they can learn to grip the paper coming out the back and unspool it that way. Point is: kids are the worst.