[there's just the tiniest hint that he might actually answer that question — he even inhales slightly like he's about to — but that impulse just ends in a sigh instead. Dave can't do it.]

Nah, it's nothing. Don't worry about it, all right? Getting space arrested's probably a big enough problem as it is.

[of course, he'd make that argument even if they were on the beach or something, or anywhere else one might consider "safe enough." like, say, standing among a pile of cans that will one day become a glittering, miniature metropolis.]