I used a screenshot because I wanted you to experience the absurdity of the picture of an actual cat litter box. Surely, if there were a litter box for a human being it would need to be proportional, and I think a third grader is about 6 times as large as a cat. I don't know the urine output of a child versus a cat, but, seriously, you're going to need a bigger box. But if it is a hoax — and Wikipedia assures me it is a hoax — then there is no box and that's the whole point.
I was going to make a joke using the phrase "Schrödinger's cat box," but the Wikipedia entry "Schrödinger's cat" was a real rat hole.

