In case of emergency
Suddenly, the world was in slow motion. He could see Tony approaching so slowly that hardly seemed to be moving at all. Bruce was in panic, he had to do something, it was too early for that.
He did the only thing he could, feeling a fool by using this technique, but it was the only one he knew to break the spell. He turned his face away, breaking eye contact. He let out a nervous laugh and felt his cheeks blush. He was sure he was acting like a fifteen years old teenager girl. He pulled his wrist gently.
"I think we're alone, we can go back to work." he said without looking up and then practically ran out, leaving a desolate Tony behind.