Disclaimer: Not mine.
Renaud Feuilly and Jean Prouvaire always sat on opposite sides of the Musian, and were not in the habit of speaking with one another. Feuilly detested the young "poetaster", and Prouvaire was short with the man "who has the look of a burglar".
But of course, this was natural. A rich son should loathe the man who saw art as his only means of livelihood, and the working man should see the son as a talentless hack, a little boy who woke up one day and decided to live the life of an artist. With his father's money, of course.