Thank Posted on February 1, 2017February 1, 2009 by admin Knock-knock. Who’s there? Thank. Thank who? You’re welcome! Spread the love Related posts: Knock KnockWho’s there?Howard!Howard who?Howard like Sneeze Knock KnockWho’s there?Felix!Felix who?Felix my Knock KnockWho’s there?Martha!Martha who?Martha them