The best way to do business with a liar is confront them with the truth. Tell them that you do business as a partner. If your lying customer still can't see the light, tell him that you may not be the best choice for business, and that you think you have someone that can serve him better. Then, refer him to the competitor that you hate the most.
Jeffrey GitomerTake your job seriously, BUT don't take their complaints personally. If you take it personally you'll get upset and lose your edge. If you take it too personally, you'll lose your edge and your job. If you take it seriously -- it's you with them. If you take it personally, it's you against them. What steps can you take to ensure keeping your cool?
Jeffrey Gitomer