If it's too loud...

Old and busted: If it's too loud, you're too old.

New hotness: If it's too loud, you're my son.

"I can't hear myself think!" he shouted at me in the kitchen just now, while the radio was playing some energetic songs from my youth.

Two possibilities: He does not possess a rock n' roll soul.

Or I'm getting old and have all my electronics turned up to high volume because ... that's what I did when I was young and now my hearing is ruined.

It's possible both are true.