"Oh God, oh God, oh God, oh God!" Harker cried. "Turn the lights back on!" he shouted into Tony's ear.
"Hey, shut the hell up!"
"Why have you done this? Turn the lights back on! We have to get of here. Oh God, it's too dark! I can't breathe! There's no air in here. Oh God, there's no air! Get me out of here!" Even though he was handcuffed he began banging on the elevator doors.
"Great, stuck in a pitch black elevator with a claustrophobic," Tony muttered to himself.
"Do something! Get me out of here before I die! God! I'm going to die in here; are the walls closing in? I swear the walls are getting closer; is it getting hotter? I'm going to boil to death!" Tony had quickly got fed up with Harker's panicked ramblings. He grabbed both his arms and shook him roughly.
"Hey! Listen to me! There's no way I'm going to get stuck in here for god knows how long with you rambling like a crazy man! If you don't shut up, I'm gonna shoot you!" Tony shouted, glad that he had picked up his gun before collecting Harker. Luckily Gibbs had drummed the always be prepared motto into him early in his NCIS career.
Harker quietened quickly, but Tony could still hear his harsh breaths as he tried to get the precious air into his lungs. "Breathe, deep slow breaths," Tony instructed, and slowly Harker's breathing evened out. "That's good. Now, we might be here for a while if the power's out, we might as well make ourselves comfortable." Tony helped Harker into a sitting position on the floor of the lift. Tony sat down opposite him and pulled his gun from his belt. Just in case.
"What's happening?"
"I don't know."
"Why don't you know?"
"Cos I'm stuck in here with you!"
"You don't have to sound so unhappy about it," Harker complained.
"You killed someone Harker! Excuse me for feeling a little tense about being stuck in an elevator with a murderer."
"He killed my brother!"
"That does not give you the right to kill him in revenge!" Tony shouted, pointing his gun at Harker. Harker stayed silent, giving Tony time to cool off. He dropped his gun hand back into his lap. "Gibbs'll come find us eventually."
"So I can be carted off to prison for the rest of my life? I'd rather you shoot me now."
"Don't tempt me." Tony blinked as the emergency lighting switched on. The tiny spotlight in the ceiling glowed a dark green, giving Tony just enough light to see his prisoner properly. "See? That's a start"
"This elevator feels even smaller than it looks…are you sure this thing isn't airtight?" Harker pulled at the tie around his throat. Tony rolled his eyes, silently hoping Gibbs would find them soon.
"How about we sit in silence," Tony suggested.
"Good idea, we have to save oxygen."
Tony just looked at the crazed prisoner as he opened his mouth and sucked in air. His cheeks swelled up as he tried to hold his breath and even in the green light Tony could see Harker's face turning red. "Hey! Hey! Stop that!" Tony nudged Harker with his foot. A second later Harker let out the oxygen with a loud gasp. "I don't want my team-mates to open the doors to find me standing over you, passed out from lack of oxygen."
"You think I'm going to pass out?" Harker panicked slightly.
"Not unless I knock you out, which still could happen if you don't shut up!" Harker grumbled under his breath and rubbed his sore arm gently.