Well emotions are big and after all that hard work to get to that point or knowing that it is over it can take over someone's emotions. That is what happened with Khabib where after losing his father and promising his mother that he would stop, it came to the surface.
Well either way it looks like whomever wins Nevada wins the election and if not, Trump is going to demand a Wisconsin recount due to the fact that there have been more votes cast then registered voters in the state. Like I said though if Trump wins all other states still up for grabs then it's game over.
I figured he had a retirement plan and had made some smart investments with all of those millions of dollars that he made from fighting. Also I'm sure that if necessary, Putin or Fedor would be willing to give him a government job with regulating MMA. But yeah these Russian fighters just enjoy going into the frozen tundras to live a simple fight.