User blog comment:FairyRaven/Fairy Tail Chapter 362: Natsu vs. Jackal, Review and Commentary/@comment-2214433-20131129123313/@comment-7418318-20131129124831

Natsu: Because he's Natsu. Same as always.

Happy: Because he's the child-kitty and thus Mashima isn't allowed to kill him in a shounen manga. kinda...