Bruce laughed a little because, well, if he didn't laugh about the Hulk around people he probably could trust, what could he really do? Give in and run around causing destruction? No, that wasn't an option. That was never an option.
"Yeah, I'm pretty pissed off most of the time and I've got a lot to draw from for that feeling." He leaned back and set his folder to the side so he didn't have to keep holding it. "It's more like a state of mind where I'm so... I'm constantly in the state of 'one more thing goes wrong, and he'll explode.' When you're so angry that things just feel calm and you're waiting for that last thing to snap. Thankfully, it takes a pretty big thing to trigger that for me."