[From behind, when one is quite incensed, it's rather easy to mistake Garfield for anything other than what he is. He does look vaguely human-shaped, and his hat and robes hide his ears and tail quite well. As soon as he turns (which he does as soon as his attention is drawn,) it is very clear that he is a different creature all together. He smiles as Sola approaches]

Well, that is a rather difficult question to answer! [his smile stretches wider] For what malady, exactly, are you searching for an explanation?