All Mike has to do is counter-sue the guy.
- Harassment.
- Assault & battery (throwing water bottle)
- Civil suit for creating unsafe conditions on a flight.
- Putting Mike at risk of physical harm by bringing too much public attention to a celebrity on a flight & putting the celebrity at risk of physical harm from multiple other random passengers who could possibly decide to jump in and try to fight the celebrity, especially a tough guy celebrity who is known for fighting.
- Monetary compensation for causing Mike's professional/celebrity reputation to suffer & the resulting financial consequences thereof, losing potential endorsements, speaking engagements, appearances, etc.
- Whatever else the legal team can dream up.
- The lawsuits can also include the guy having to pay for Mike's legal fees, ha!
Mike can bury the guy in legal costs. If the guy is smart, he will realize he has nothing financial to gain, that he will waste time in court instead of working and earning money, and that he will be publicly humiliated by looking like a huge jacka$.
Better for Mike to lose a few bucks paying for his legal team to do this, that allow some loser to take money from Mike.