Welp, I guess we see the true reasons Junie ran out and threw hands. He's more scared of the Yakuza landlord than of getting knifed by the high school gang. Bro woulda legit got evicted otherwise. He might still be evicted over Hana jealousy but still. And damn poor Hana. Didn't deserve any of that shit that night.
Welp, at least it helped his parents in the end. Also really puts into perspective how much he leeches when a months rent for his daughter is just "allowance", pocket change to help Darla get out of messes she started.