Wow, what a truly awful noise. That definitely wasn't there last time he met the metal-armed creep. But with the murderous look he was getting from said creep, Tony couldn't find it in himself to give a shit about whatever hellish sounds the guy's cyborg arm was making, aside from the fact that clearly they were what he had to thank for a non-snapped neck.

"JARVIS, get me my suit," he rasped, hurriedly backing away even though Rogers appeared to have subdued his attacker. Appeared being the keyword. Bastard was probably playing possum.