OW MY ARM
Iron Man was heavier then he looked. Heavier still when thrown by the Hulk. Not something most people could say they'd experianced. He wasn't going to lie, it hurt.
Not quite as much as it did afterwards when Iron Man jerked him up into the air abruptly, teeth gritting as his shoulder joint gave way, dislocating before Tony adjusted his grip, and he swore under his breath.
He was definately seeing more merit in this killing the Hulk plan.