Let me take another stab at this. I do not think BP causes us to lie. Many here either do not lie or choose not lie anymore in mania. BP mania just makes it easier and maybe even more compelling to lie. Then there is the lying used to cover up what terrible things we did to others during mania. The validity of lying in this way is debatable. This approach may not permit personal accountability.

(I hope this does not stir up any emotions and turmoil here)