After dropping by the hospital and looking over Jane's chart, Bruce headed to the new Stark Industry building. He'd stopped by a coffee shop on the way to pick up a large coffee, knowing that he and Tony were likely to pull an all nighter working on this project. It wouldn't be the first time and this was a hell of a lot more important than the things they usually did in the lab.
Also far less likely to involve unleashing a murderous AI on the world.
He was only a little startled when Friday greeted him upon arrival and guided him to the top floor and right through security. He hadn't realized that Tony replaced JARVIS nor was he used to the tech after all his time away from Earth.
"I brought some brownies," he said, tossing a bag on the counter as he looked around to orient himself to the workspace.