Having to do with a swindler announces that the expected gains will become successes. Being one indicates that your methods will prove harmful.
Dream dictionary: Swindler dream meanings
…To dream you are at a fair, is a bad omen; it denotes that some pretended friend is about to do you an injury; if you are in trade, keep a keen look out, for some swindler will certainly attempt to defraud you. Lucky lottery dream numbers – 31, 15….