There's not many people on the ship that see Mal upset in a way that isn't also in the category of 'gun-wieldy'.

Nobody understands anybody anymore, and Mal can't fix it. He holds his right hand in his left and twists outward, cracking his wrist with a satisfying pop. The left gets taken care of too.

"I tried to tell her...I tried to say that having issue with folk who don't give you cause to your face ain't the best way to go about things. I don't know what she took from that."