Hehe. I know both of the cat scratches in the box as well. It's not very hard to know though. Rachel must dig to China before and after she does her business. Cubby only digs after, and it only takes him 30 seconds. Rachel stays in the box for atleast 10 minutes.

When we go to bed, hubby can always tell which cat is eating where. We have 2 food dishes in the bedroom for them. One is next to me the other is next to him. I can never tell who is where until Cubby jumps on the bed.

Amazing isn't it how much our hubby's actually do pay attention?