[Given that the second attempt yields much the same result as the first, it can be easily assumed that he is not, in fact, going crazy. He just has an invisible cat lounging on his bed, a fact that might be strange enough on its own.]

Why not ask them yourself?

[Chessur certainly isn't about to all the work, for all that he might be curious himself. It's simply that being told to stay in one place tends to matter a lot less when there aren't a whole lot of people would dream of keeping a cat in one place (and fewer still who actually could)/]