Suffice it to say that I use the word “mark”  here to describe someone who is easily influenced or easily persuaded to change his or her opinion or belief about a matter. Yesterday morning I was down at the Courthouse on Jury Duty. I get to go pretty often (about as much as the law allows)  for some reason, though I should have a permanent exemption because I NEVER get chosen for a jury. I did have the opportunity to sit through a “jury questioning” time. Both attorneys concentrated on a single question, asking almost everyone one of the twenty potential jurors if they thought a certain way about the issue at hand. It was…