(The post-credits segment begins with a parody of the Mutant Enemy logo. A hunter gunned down the titular Enemy, then the Enemy retaliates by killing him. Lots more Mutant Enemies invade a city. One is biting down on a baby.)
Joss Whedon: Rrr! Arr! Blammo! (growling, screaming) Rrr! Arr! My baby! (choking noises)
(The scene cuts to an executive room, where Joss is playing with his Mutant Enemy cut-outs.)
Joss: (crying noises) There is no God!
Executive: Come on, Joss. That's why you got kicked off Wonder Woman.
Joss: Rrr! Arr!