Once or twice in my career I decided to have my client testify before a grand jury. I was only allowed to sit there as he told his story, then listen to the prosecutor cross examine him. I could not speak. I was only allowed to sit there. It is very unusual to have a defendant testify and waive his right to remain silent, and only done when the defendant is articulate and has a great defense, and when avoiding an indictment is important. It was a dark and scary place. I felt vulnerable, and I'm sure my clients felt worse.