It's changed. It used to be awkward - the fingers not quite knowing where to go, the look on his face that said someone had just handed him a medium-sized snake or a damp sandwich. But now it's sure. The fingers are quick and deft, his face gets a certain set to it - his mouth firms into a flat line and his eyes flick down, checking the safety, checking the clip.

Everybody's had to learn new things - weapons, eating weird shit, living without sleep and coffee and other little things like comfort and security. The geeks know how to shoot, and the soldiers know more science than they ever thought they would. Elizabeth has learned hand-to-hand. John's working on diplomacy; Carson's gone from pure research to patient care.

And Rodney. Rodney handles a gun like he's done it for years. It's only a matter of time before he uses one to take a life. And of all the things that John hates, he hates that the most.