CW what is most humiliating to Fredo in the scene is that Michael thinks he has trumped Moe Green by saying "Is that why you slap my brother around in public?" and Moe says he has a business to run and he has to straighten people out, and Michael really focuses on Moe and says "You straighten my brother out?" Then Moe says "He was banging cocktail waitresses two at a time and players couldnt get a drink at the tables." So Michael has to retreat from that line of attack, so he says "My plane leaves in the morning, think about a price." In other words, Michael had no come back once he learned WHY Moe slapped Fredo.

So what does Clueless Fredo do? He starts into this "Moe and me are good friends right Moe?" and then tries to intervene with Tom. Unbelievable. When Moe sees that mike is having none of this, he simply walks out of the room as if Fredo wasnt even there.

And then Michael makes that chilling threat to Fredo, and he does it in front of everyone left in the room.