Answer the following question: Determine the topic of the question-answer pair. Question: "where does the expression "knocking on wood" come from?"; Answer: "Knocking on wood, or to touch wood, refers to the apotropaic tradition in western folklore of literally touching/knocking on wood, or merely stating that you are doing or intend same, in order to avoid " tempting fate " after making a favourable observation, a boast, or declaration concerning one's own death."? Topic:
Answer:
Knocking on wood