In Smarties Knock Knock Jokes we find our old favourites...Knock Knock; Who's there; Anita Loos; Anita Loos who?; Anita Loos about 20lbs; Knock Knock; Who's there?; Nicholas; Nicholas who?; Nicholas girls shouldn't climb trees; Knock Knock; Who's there?; Scott; Scott who?; Scott nothing to do with you; So what ever you are doing, or where ever you are going, we have the perfect (...ly awful) Knock Knock for you.