I don't know where exactly this would go. Now that Kaylee is on the mend, and both kittens are happy, I finally realized how weird this is. They are three and a half months old, and they only will use one litter box. I have three, all the same size, and it has been like this since I brought them home. I have one in their crate, one is across the room, and another is in the unused bathroom on the same floor. I have introduced them to all three repeatedly, but they still only use the one in the crate. They will even wait until I am done cleaning both the litter and the crate to use that one. Should I be worried, or are these two just weird.