[Yukimi, grand at moving goalposts and for some reason carrying himself like a fifty-year-old man in general, has convinced himself that the closer he gets to thirty, the younger "close to twenty" is. As far as he's concerned, this young man is a kid, and an unruly one, and there's nothing Yukimi hates more than unruly kids.

Or... maybe nothing more he cares about... than unruly kids?

No, no, they just piss him off. His grimace here shows as much.]

If it's in the gutter, now it belongs in the gutter. You sayin' that's where you're headed, too?

[Yukimi is, perhaps, melodramatic in the way he lectures people (kids) (anyone under 25?), going in hard from the moment he starts. He's more high-strung than he appears, it seems...]

Don't freakin' do crap like that. Stay on the sidewalk. Jesus.