The present paper focuses, in connection with the Amelie Nothomb's novel Ni d'Eve ni d'Adam ("Neither from Eve nor from Adam"), on the play between acceptance and subversion of well-known sayings which match to some "ready-made-to-think-right" and "ready-made-to-behaviour". The real author becomes central figure of the fiction and assumes many roles on the enunciation stage as well as on the enunciated ones she makes happen. Jointly, will be explored the dynamics of the identity and, at the same time, the humorous effects stimulated by Amelie's cunning fictional discourse. With reference to these points, will be used the notional framework conceived by the French linguist Alain Rabatel, which could reveal the similarities, also the differences, between humour and irony - two attitudinal ways of the mocking discursive ego.