Final arguments are being heard at the Ellen Pao sex discrimination case in San Jose, and some of the more painful points of the plaintiff’s and defendant’s history are coming out.

Pao’s lead attorney Alan Exelrod is talking to the jury right now about how Pao was a definite performer — and an underpaid one — at Kleiner Perkins. One of the examples he gives is the time in 2008 when Pao tried to convince the venture capital firm to invest in Twitter.

Pao, according to Exelrod, had sought out Twitter when it was still a young company. She talked to Twitter’s then CEO Jack Dorsey, and got excited about the investment possibilities.

Exelrod: “She came to Mr. Murphy [then KP senior partner Matt Murphy] and said we should be looking at Twitter as an investment.”

“Murphy said, ‘No, this is not going to be a business,’” Exelrod said.

Re/code reporter Liz Gannes reports that somebody in the courtroom laughed loudly after that statement.

Exelrod continues:

“Kleiner Perkins did not invest in Twitter. And this is a real irony here because your verdict is going to be announced to those people and the world on Twitter.”

Kleiner Perkins did later invest in Twitter, and it was a successful investment, but it was later on, in 2010, at a much higher valuation, Exelrod said.