Yea, I know they can get sick with no nourishment at all. That is why it is kind of a hard choice giving him space or force feeding him. Althought I know of cats that went without food for much longer. Cats are stubborn, so they might not always coming out when they are hungry. I will need help catching him tomorrow because someone convinced me of letting him out of the small space. I know now I shouldn't have listened. That is the problem with the web sometimes. You get both good and bad advice. And vets mostly just know the pure medical stuff.