Batman and Robin in “Unfinished Business”

Batman

I'm gonna say something embarrassing here. I didn't have a nemesis until... my late twenties.

Don't patronize me, father, it's unbecoming.

Batman

It's true. I wasn't ready for one. You want your first nemesis to be special. Someone that you can see being your nemesis for the rest of your life.

I suppose you're right, father... When can I start having sex?

Batman

I... think I hear the bat-signal. [Grapples the hooks away]