"Not very much, generally!"

"I'm not a random acts of chaos kind of guy, if I disrupt things it'd be for a reason. Most of the things I could disrupt with magic would be better handled without; I could go on a big dramatic crusade to end slavery, I guess, but then you kill me and we're back to square one. No actual change."

"Yeah pretty much."

"Right. I'm better off finding a solution to things that doesn't involve pissing you off, that's both more likely to actually work and better for my lifespan in general."

"Well, congratulations. You get to live."

And he turns and walks away, disappearing through a brief shimmering hole in the air.

"Yay," he says, then flops backwards onto the grass to mutter cursewords to himself and slowly work up the impetus to go home and face his parents.