Batman: The Animated Series1992

[last lines]

Dick Grayson:
But that creep Mockridge got to pocket a cool ten mil from the buyout. What a burn!

Bruce Wayne:
Maybe. But we've searched everywhere for the Riddler, and he's still out there.

[Mockridge is shown, shivering with fear, locking five separate deadbolts on his front door, then tip-toeing to his bedroom, carrying a shotgun]

Bruce Wayne:
[voice-over] Mockridge may have his money, but he won't be sleeping well at night.

[Still shivering, Mockridge looks nervously under the bed, then puts down his shotgun and climbs into bed. He turns out the light and lies awake, staring at the ceiling]

Bruce Wayne:
[voice-over] How much is a good night's sleep worth? Now there's a riddle for you.