No, no, Tony can't get hysterical, not only because Bruce doesn't want him to get that upset but also because he thinks it might be best if Tony kept a cap on his negative emotions. He decides to take a risk and pull Tony into a hug, hugging him tight and close. If Tony wasn't lunging for him yet, maybe he won't lunge for him now, long enough for them to hug anyway.

"You're not going to eat the town," he says quietly, calmly, trying to transport some of his confidence into Tony. "I know two other vampires here, and they haven't eaten anyone." He squeezes him again before he sits back, still holding onto his shoulders.

"And I'm not going to pull your teeth out. I can get blood donated; you won't starve, and you won't eat anyone."

He believes they can succeed at that, but he is sympathetic about Tony finding himself suddenly capable of killing people against his will.