Pompey and Cicero in “Unfinished Business”

Caesar is bluffing. He wishes to appear supremely confident. Evidently, he's desperately weak, weaker than we thought. This is a last-ditch attempt to frightening us into making concessions while he still has the semblance of an army. He's weak, Cicero, dying.

Is that not when all the proverbs tell us to be wary? Does not the dying serpent bite deepest?