The Interpretation of Dreams by Sigmund Freud Chapter 5 Page 34

father's place of business. For discretionary reasons I have inserted the tin for another material in which the father deals, without, however, changing anything in the verbal expression of the dream. The dreamer had entered his father's business, and had taken a terrible dislike to the questionable practices upon which profit mainly depends. Hence the continuation of the above dream thought (“if I had only asked him”) would be: “He would have deceived me just as he does his customers.” For the pulling off, which serves to represent commercial dishonesty, the dreamer himself gives a second explanation — namely, onanism. This is not only entirely familiar to us, but agrees very well with the fact that the secrecy of onanism is expressed by its opposite (“Why one can do it quite openly”).