I love Janto: yep.
Saturday: Nanogenes (from anything as tame as healing to making a whole new creature; go wild)
Ianto sat on a chair, Jack stood over him holding a canister. Yellow light engulfed Ianto's hand, healing over the cuts and bruises. "Nanogenes," Jack said. "You'll be as good as new."
Ianto flexed his hand when the light had disappeared. "Amazing."
"I'll say. They can reanimate the dead, but that doesn't always work out right."
"No surprise there," Ianto said dryly. "Almost seems like a waste. My hand would have healed by itself."
Jack bent down to give him a peck. "Far too slowly." He held out the canister. "Better archive this. I have to make a call, won't be long."
Ianto took the canister. "I'll see you tonight then."
I think Jack told Rose the nanogenes only worked once but he wants to play it safe.