Read the following context and answer the question.
Context: Mostly , though , I was trying to distract you from thinking about work . " " Valiant effort , but quite a task to take on . The last time I did n't think about work at all was ... " He paused , bringing a finer to his chin to tap it in mock thought . " Three weeks ago . "
Question: Why was he tapping his chin in mock thought at the statement ?
Answer:


It was a humorous way of replying that it is nearly impossible for him to forgo contemplating about his job .