The implication, of course, is that the cat has not come down yet because he wants to be there or is simply not yet motivated enough to come down. Once he decides to come down, he will. These cat-stuck-in-tree deniers ignore the reality that the cat is staying up there for days or even weeks in miserable conditions without food or water or a comfortable place to stand or sleep and clearly wants down. Never have I heard them explain why the cat would choose to stay there. Are they suggesting that this might be the cat equivalent of some kind of religious fasting ritual?