"I don't know about that. If the way to my heart was as specific as seeing your naked body barely withstand radiation damage, I'd really suggest you don't offer." Of course they'd be teasing and flirting in this situation. Very much them, the Doctor supposed. Very much Jack at any rate and the man did have a way of bringing it out in him. He had to smile despite himself, even though he didn't stop watching carefully, making sure Jack wasn't having too much trouble. "If you can just put the casing back on when you're done, the whole thing should be stabilizing. I'll have to figure out a new algorithm to make it work without blowing up again, but that shouldn't be a problem."