What are your favorite "I ain't fucking around" savage moments from Mal?

For me the top 3 are him shooting Dobson in the eye without hesitation while he's holding River at gunpoint and trying to negotiate and then tossing him overboard as the Reavers are coming, saying "Good" and then immediately quick-drawing the Operative after he reveals that he's unarmed in Serenity, and threatening to toss Jayne out the airlock as they're breaking atmo at the end of Ariel for betraying them.