Hawks and Handsaws

The appurtenance of welcome is fashion and ceremony. Let me comply with you in this garb, lest my extent to the players (which I tell you must show fairly outwards) should more appear like entertainment than yours. You are welcome. But my uncle-father and aunt-mother are deceived. ... I am but mad north-north-west. When the wind is southerly I know a hawk from a handsaw.

Hamlet, II.ii.362-370