Eragon sat there, utterly bored, the final battle raged around him, while he inspected his fingernails. Eventually he saw Galbatorix appear from uru'baen on his dragon. Both of them landed about thirty foot away from him and Galbatorix jumped off Shruiken in his black armour, he then started his whole speech

"you are foolish farm-boy, to even believe you can match my awesome power..."

"that's wonderful galbs, but listen I got another appointment in, ohh, 15 minutes and I've slotted you in between my performance review and killing the high demon ruler person of three worlds, so can we get past the whole 'I'm so powerful and will crush you' speech" galbatorix just stared at him

"performance review?"

"yeah, you know, where my bosses look at my performance and see where I can improve"

"bosses?" galbatorix was a little bit confused by Eragon

"yeah, I work a Deathco. I have a business card somewhere, and our motto is 'where we bring you deaths to life'. No, I don't get it either" galbatorix just stared at him dumbfounded and Eragon stared back before getting bored

"sod it" he pulled out a M16 sniping rifle and shot Galbatorix between the eyes.

"that was...easy" he wandered over to galbatorix's dead body and checked him for signs of life

"righto, job done, hey big old gods in the sky, I'll have my payment now" by this point most people had turned to watch Eragon, to their complete surprise gods did come down. Mostly dwarven ones, arms full of sacks

"err...thanks for that, here's your payment" they dumped the sacks, which Eragon attached teleport beacons to. Once he had done that he pulled out a small remote and pressed the two buttons, then he and the sacks disappeared.