Comment on Something in the Closet page 3 by JoeyWaggoner
Why is he in the closet? How did he get there? it looks too cramped(no signs of being like the TARDIS), and why leave him in the closet? Shouldn't he have somewhere else to be? Other than that, why would Batman "roar" as shown in the first comic page squares? If he's hungry, give him a sandwich already. He's not a mouse, so you can give him a cookie without him wanting more, too.
Because it's funny.
Assuming you read the description, I don't think you understand the nature of improvisational comedy at all.
either he was just joiking around, being literal, OR he was being an ass.