[Robin definitely feels disappointed. It wasn't so weird without Batman until someone like him showed up. Of course, this little bird knows it'd take more than fear to do something about the Joker.]

When hell freezes over, maybe. I think you're the one that needs the wake-up call. I'd just like to see you try something here.

[Because Daddy's not here to stop him from trying to doing something terrible if this creep acts up.]