Please give a quote with a pun in it from "Much Ado About Mothing".

Much Ado About Nothing is a classic Shakespearean comedy, and vast amount of puns, or play on words, can be found all throughout the play. 

A pun can be found in the opening scene when Beatrice refers to Benedick as "Signior Mountanto" (Act 1, Scene 1). Mountanto refers to "montanto," which is a term associated in fencing to an upward thrust. Beatrice is implying, therefore, that Benedick has bad fencing skills.