my cat is OBSESSED with hair elastics. She runs around with them, flings them and stares at me if she thinks I am taking one out of my hair. She is right there if I set one down.
And I always have something to do while I am in the bathroom because she will wait for you to roll up toilet paper and fling it under the door. It is a game her and my bf made up I guess. So I will be sitting in there having an attack and the cat is fishing under the door with her paws.