Michael is a mentally tough individual who has encountered quite a handful of hardships and difficult experiences throughout his life. He is also very fair and treats most of the people he meets similarly to the way they treat him and tolerates no sort of abuse or shit from anyone. However, at times, he may be overly-judgmental of certain people he runs into, but he is just relying on what his own gut and instinct tells him initially. Most importantly, he is also extremely unpredictable and not a person who you would want to associate as your enemy.
Never underestimate Michael because you may be surprised what he knows or what he is capable of.