My failure in previous salary negotiation was assuming my employer would be honest about my delivered value. Even documented and presented as a counter point i

My failure in previous salary negotiation was assuming my employer would be honest about my delivered value. Even documented and presented as a counter point in negotiation they simply denied the truth and quickly tried to pan the evidence. Maybe I was naive, but it was so shockingly dishonest to me, I was mentally broadsided, mouth agape in disbelief. I mentally quit right then and there, and left as soon as possible.