"Wasn't my primary function."

Which slips out before he means it to, but the conversation is casual in a way he hadn't been expecting, the questions being so matter-of-fact and following a different path than he thought that the answer simply comes naturally.

"It's pressure points and speed," he offers finally. "If he's grateful, maybe it'll keep him from attacking an unarmed person."

Or not, considering the tensions in the city, but it's a nice thought.