I just found this article about cat litter.. maybe that dare isn't so good because it might worry people that someone has a sick cat..

Have you ever caught your cat eating its litter?
Eeeww! Hopefully not, as a cat who suddenly starts
eating litter is almost always sick. Cats with anemia,
a condition in which the body doesn't have enough red
blood cells, will sometimes eat litter. Vets aren't
sure why they do it, but it may be nature's way of
getting more iron into their systems.

Cats with kidney disease or feline leukemia will also
eat litter occasionally. Improper diet can also cause
cats to eat litter. If you notice your cat dining out
of the litterbox, an immediate visit to the veterinarian
is in order.


so.. someone can think of a new dare.. or at least explain the situation maybe so people don't freak