Karma Police

And he didn't even know what he was doing, he didn't know if it would work, if the bomb wouldn't just kill them all and they would never exist, so the plane would never land. And considering how hard he tried to get back to the island...just weirder.

Just remembered a Jack/Christian scene. His father just helped him, so he wouldn't kill that woman on the table and he shouts at him...be grateful for once in your life.