Prolouge
Bruce stalked into the SHIELD laboratory, angry and exhausted, collapsing on the fold down cot Stark had installed in the far wall. He had claimed it was because he sometimes napped while he was working, but Bruce knew better; Stark never slept until he was finished a project, but the cot had been a kindness and he hadn't protested or questioned it. He sighed heavily, curling into a ball on his side. Being the Hulk always sucked away so much of his energy, he sometimes wondered why he allowed it to happen, even if it was for the greater good. His eyes blinked heavily, and then slid closed and in a matter of minutes, he was out cold, snoring quietly.