Knock KnockWho’s there?Cash!Cash who?I knew Posted on May 1, 2016May 1, 2010 by admin Knock KnockWho’s there?Cash!Cash who?I knew you were nuts! Spread the love Related posts: Knock KnockWho’s there?Alfred!Alfred who!Alfred the Knock KnockWho’s there?Howard!Howard who?Howard like Y2k Knock