Bruce nodded, "Hulk serum. Effie created it. It's a tranq of some kind that you put into a gun. If you shoot it at Hulk it calms down." She needed a fallback in case it didn't go as easily next time as it had this time.
"I told you id come to help if you needed me." He didn't mind helping Dinah. That was the point in giving her the watch. He was just glad she thought to use it when the time was dire.
He took a minute to get a good look at her costume, having really never seen her heroine attire before, "You need something safer to wear, Dinah. Kevlar or something..." It was a simple observation but his mind was whirring already with ideas.