[He's heard people call him insane before. It never fails to irk Ivar. He's not a lunatic. He just sees everything more clearly then everyone else.]

Crazy? My brother called me crazy once. I killed him for it.

[There's no bragging tone in his voice, just a flatness like he's discussing the weather, which might be more disturbing in and of itself. Ivar's got his axe out now and flips it around in one hand. The boy is hopelessly naive. Taako, though, he's got his measure down pat.]

Try it, pretty boy. You'll be dead before I hit the ground.

[Threats only work on people afraid of death. Ivar's got fear like everyone else, but he's Norse. Death means prestige and honor to them.]