where did the saying come from knock on wood
Knocking on wood The origin of the custom may be in German folklore, wherein supernatural beings are thought to live in trees, and can be invoked for protection.[1][2]
Aubrey Woods Aubrey Harold Woods (9 April 1928 â€“ 7 May 2013)[1][2] was a British actor and singer.
Rabbit rabbit rabbit The exact origin of the superstition is unknown, though it was recorded in Notes and Queries as being said by children in 1909:
Piggly Wiggly One story says that, while riding a train, he looked out his window and saw several little pigs struggling to get under a fence, which prompted him to think of the rhyme. Someone once asked him why he had chosen such an unusual name for his organization, to which he replied, "So people will ask that very question."[11]