14. In return for concessions from your opponent now, offer to make future concessions which you know you will not follow through on.
15. Threaten to make your opponent look weak or foolish in front of a boss or others to whom he or she is accountable, even if you know that you won’t actually carry out the threat.
16. Deny the validity of information that your opponent has that weakens your negotiating position even though that information is true and valid.
17. Give the other party the (false) impression that you care about his or her personal welfare.
18. Intentionally misrepresent the progress of negotiations it your constituency in order to make your own position appear stronger.
19. Talk directly to the people who your opponent reports to, or is accountable to, and tell them things that will undermine their confidence in your opponent as a negotiator.