Note to Hamlet, 3.2.93-95: "Excellent, i' faith; of the chameleon's dish: I eat the air, promise-crammed. You cannot feed capons so"

The King asked, "How fares our cousin Hamlet?" He was simply asking Hamlet how he was doing, but Hamlet deliberately misinterprets the King's question to mean "How's your food [fare]?" Hamlet then makes a statement that sounds "mad" and suggests that he is deeply dissatisfied with his position as heir to the throne of Denmark. Chameleons were thought to feed on air, and Hamlet puns on air/heir. Also, a capon is a male chicken castrated when young to fatten it up, so Hamlet seems to be hinting that the King has mistaken him for a human capon.