Just don't ask him "Who's your daddy?" in bed. In fact, just don't mention parents at all.
The Penguin's gonna sleep with the fishes.
Video Batman Chooses His VoiceNovember 08, 2011
You don't get an awesome gravelly voice on the first try.
Video Bat-Kid RisesNovember 25, 2013
Alright San Francisco, you actually can be smug about this.
Video Bat-Dad ForeverOctober 24, 2013
Papa do you fear me?