It's a little small game that Hitchcock plays, an example of how playful he is when he makes a movie and how a great deal of fun in these films is just finding these little hidden jokes.
살인자는 열에 아홉은 겁에 질리지 그런데 저 남자는 전혀 겁에 질리지 않았어 내가 헛 것을 봤단 말인가?