Now, good digestion wait on appetite,
And health on both!

– William Shakespeare

Macbeth, Act 3, Scene 4. After learning that Banquo has been killed on his orders, Macbeth appears to compose himself in front his guests at his post-coronation banquet. He toasts them as if nothing has happened, showing how deceptive and two-faced he is. There is an example of dramatic irony, since the audience knows what Macbeth’s guests do not. Lurking beneath his verneer of conviviality and hospitality is a man who plotted the murders of Banquo and his son.