Although they didn't think it was right when what they did was done to them.
I tend to disagree here PS. At least with the Norse. They believed that a death in battle was the most honorable, and it gave them a place in Valhalla where they would drink mead with the gods. While I'm sure death itself wasn't pleasant, they would much rather die by an axe being driven into their skull in battle than to die the peaceful death of an old man. That was the worst.
Pirates are another example. They had their code, and when their code turned on them, they generally accepted it as right.
NC