[He is a sibling to at least one of you.]

It's fine. Don't worry about paying me back. And the yards are supposed to be safe, but you never know, so. Look after each other.

[Don't die too, is what he means, even if he doesn't say it.]

I'll let you go on with your preparations.

[And he's signing off. Mostly to go react properly to this. Most likely by covering his ears and retreating into a corner. Yeah, sounds about right.]