Her brief smile at talking about punching Bruce fades as well.

"There are plenty of abandoned buildings around the place, but we'd have to watch the guy and feed him and stuff, "It's pretty obvious how she feels about that -- this isn't Gotham, where they have access to Bruce's practically endless bank accounts.

She goes silent again, her hands clenched in fists at her sides, after a moment she looks up, her expression kind of pained and desperate, "Babs..." She wants the man dead, but she can't find the words to explain it without sounding awful.