Knock KnockWho’s there?Barbara!Barbara who?Barbara black Posted on October 7, 2015October 7, 2007 by admin Knock KnockWho’s there?Barbara!Barbara who?Barbara black sheep, have you any wool…! Spread the love Related posts: Knock Knock 164 Knock KnockWho’s there?Hans!Hans who?Hans off Knock Knock 182 Madam Car