You may forget what you said but they won't forget

My fortune cookie took me a minute to understand. It said, No one has a good enough memory to be a good liar. Suddenly as I realized what it was saying, I could see several images of people in my mind who I had run across throughout life. They would say one thing one conversation and the next time the details were different. I had often wandered if they realized that last time they said four and this time they said seven. But they always seemed to not remember as they continued on with their story. There had been a time or two where I stopped someone in mid conversation to say hey last time you said four. This only caused tension in the air as they tried to deny ever telling me four. Now I have learned to not bother to confront them. But what I did learn was I would never believe a word they said anymore. Like the Fortune cookie said no one has a good enough memory to be a good liar.