Sometimes the dialog writing process. I love writing a good joke. There's one that I'm going to draw the scene for soon that I'm really looking forward to.
(context: Ragna is very small)
Ravening: "You're seriously going to fight her?"
Ragna: "Yeah. Why wouldn't I?"
Ravening: "Oh, I don't know maybe because shes a 10 foot tall mountain of sexy muscles with a giant fuck-off sword and you're a childs medium ."
Ragna: "... what the fuck does talking to dead children have to do with anything? And who said I can talk to dead children!?"