I find it difficult to understand the meaning of 'This I can do without' in the following script excerpt from the movie 'Fellow Traveller':
Kaufman: This whole town is full of phoney acts that are charging 20 bucks an hour to tell some poor schmuck that his problems have nothing to do with the screwed up system we live in, but because he saw his father's prick in the shower when he was five or something.
Leavy: I charge 25.
Kaufman: I grew up in a 3-room railroad apartment on the lower eastside.
Leavy: You must have had plenty of opportunities to see your father's prick.
Kaufman: Oh-ho. This I can do without.
Is he saying that he just doesn't want to talk about that in the conversation (regardless of whether he's actually seen it or not), or that he doesn't want such a situation in his life, or some other sense?