→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from TodayIFoundOut The Origins of the Neck Tie https://youtu.be/oThApiIH7dM?list=PLR0XuDegDqP0GESJ0DgpgTcThLJVEbFs8 Miss Unsinkable https://youtu.be/8-798XH2RPE?list=PLR0XuDegDqP33-NUx7wuKb-3PDj-gRKgR In this video: You’ve probably said this phrase and performed this action countless times, without the slightest clue as to the meaning behind it. So why do we feel compelled to “knock on wood” as an insurance policy against bad luck? Want the text version?: http://www.todayifoundout.com/index.php/2014/01/knock-wood/ Sources: http://www.amazon.com/gp/product/006015862X/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=006015862X&linkCode=as2&tag=vicastingcom-20 http://www.worldwidewords.org/qa/qa-tou1.htm http://mentalfloss.com/article/50079/why-do-we-knock-wood http://www.stuffyoushouldknow.com/blog/knock-wood-kind-explained/ http://en.wikipedia.org/wiki/Knocking_on_wood http://voices.yahoo.com/popular-phrases-meaning-origination-knock-on-468379.html?cat=37