 Could have been the litter box not being cleaned often enough. It could have been the location of the litter box. It could have been that the kitten, just because the litter box was so far away, needed another litter box to get to as well. Kittens only have so much control, just like little kids only have so much control. It could have been anxiety related. I just don't know because I don't know any of the specifics.