Robert Brownstone has been my friend and colleague for many years.  In fact, he was Chairman of @CalBarLPMT two years prior to me.  We recently appeared on a panel together called, "Under Fire: Defending and Challenging a Motion against Technology-Assisted Review – A mock Meet and Confer (26f) hearing".  He played the role of the Plaintiff's attorney and I the Defendant's.  Robert was a late addition to my panel and I was delighted to present with him again!