He thought he was prepared for it, at least enough to withstand it for two minutes. Even now, he should be able to control himself enough for that.

He makes it about twenty seconds before he pulls the gun out of Tony, tosses it into the box he put the plug in, and yanks off the gloves with vicious impatience.

(There is no universe in which Tony Stark is not Obadiah Stane's personal boiling point. This simple fact may manifest itself in countless ways across countless realities, but in the end, one way or another, Tony can always make him break.)