The Soldier steps back obligingly, absolutely not wanting the arm to get fried. They're watching the show, rather than working on target practice themselves, because they've learned the hard way that knowing what your potential battle partners are capable of is the only way to avoid being startled by them and missing a shot, or worse. "Patrols. Couldn't stay inside, too confined. It was just luck I spotted you. Another minute or two either way, and you'd have been invisible in the storm."
no subject