The Wallcreeper by Nell Zink:
To my surprise, Gernot looked at the ruined riverbank and was well pleased. Apparently it had never crossed his mind that sabotage doesn’t look criminal if you get a young, middle-class housewife to do it. I looked like Jane Birkin in Slogan, if Slogan had been set in a scout camp in Poland. I worked the way Patty Hearst would have robbed banks if she’d never met the SLA. The militant wing of Global Rivers Alliance radiated innocent industry. If I have one talent in the world, that’s probably it. Looking innocent enough to make whatever it is I’m doing appear legal.