There are plenty of night, probably the majority, where Bruce is 100% committed to the role of Batman. Just living and breathing the pursuit of justice and crashing through the skylight of the latest hideout and just snarling the villain-of-the-night’s name all “RIDDLER!”
But then there are nights where he’s just so fucking done. He’s still out there giving 110% but radiating exhaustion and exasperation the entire time. The villain’s waiting for his inevitable arrival, all the henchmen’s eyes trained on the windows and the roof, but instead Bruce just slams the door open one-handed, casually knocking out a henchman, and glowers wearily. “What the fuck, Ed?”
That’s hilarious, because how fast would it deflate the Riddler’s preening, over-inflated ego to have his great master plan and clever word play greeted with an exasperated “What the fuck, Ed?”