[ Fortunately, "ornery asshole who needs to learn some manners" makes up a worryingly large proportion of Oscar's social circle back home. ]

It's Callan. He's trying to make people go to the lake with him.

[ Granted, Oscar had only learned all of that after a borderline panic attack, but at least he knows now. ]

Sinann has been telling him to let people go, but that won't help your sketchbook.