Freudian Slip vs. Unfortunate Miscommunication

Marcus Aurelius said in his book, Meditations: "Train yourself to think only those thoughts such that in answer to the sudden question, 'What is in your mind now?' you could say with immediate frankness whatever it is, this or that: and so your answer can give direct evidence that all your thoughts are straightforward and kindly." As a philosophical philanthropist and leader of an empire, Marcus understood what it was to always be thinking, and never be caught off guard worrying about selfish or ambiguous impressions. This bit of advice could have saved me from embarrassment from the many times that I have been asked what I was thinking, and the only non-sensical reply I could surmise from the depths of the hollow inside of tubing within my head was, "I don't know." Teachers and professors have never been too fond of this reply. Of course, it is better to admit that one is thinking about nothing, than to shout "mother lover" during a political science class... Yes, I'm referring to myself. The question that was posed was whether or not the state senators represented the people fairly. Having watched the famous J.T. and Andy Samburg earlier that day, it was all I could do to not picture J.T. pouring syrup on a waffle... Now to the punch line: I responded, "I think the senators would do a better job with "mother lovers" (I meant to say motivating)... and from there it was quite the ordeal. However, the real question remains, how many times have we spat out any non-sensical catastrophe of words and wished we could pull them right back in? Was Freud right when he said we only say what we are thinking? Or was it just a horrible mishap that had my professor second guessing my intelligence? The world may never know...