That's one of the lines my girls loved in Romeo and Juliet. I suspect they will also be calling people pestilent knaves. Yesterday I heard, "How now?" from Anne, and of course, "wherefore" in lieu of "why" has become commonplace.
We just finished reading the play together this morning, and together is a wonderful way to experience Shakespeare.
We've had such fun, getting up early, before Ramona is stirring, reading and sipping tea and, one day, watching Alan Rickman as Tybalt:
(Thanks to Atticus for remembering it.)