I thought I saw a post similar to this before on here, but I can't find it when I search. I have two kitties and one of them lately has been throwing up little puddles of hair/muck-the thing is, I can't tell if it's a hairball and who it is coming from. I thought I could tell by the hair color, since one is gray and the other white, but I can't really tell. Has anyone had this problem and has an idea on how to tell who it is coming from? Thank you!