- I vaguely recall a Fredric Brown (?) story where people turn to (conceptually, self-defense) violence against cars because they've reached the insight that the fumes are literally killing them, like cigarette smoke.

- Some people (hmmm, "some people I know") have chosen direct action and planned+participated in sabotage of pipelines and railroads (used for coal and oil transport). Several were arrested in multiple states, but the overall outcome was symbolic with limited media coverage; not really what I imagined as effective, direct action. Now, some have spent time in jail, and some are scared because they feel responsible to their young children, and what happens to the kids if their parents spend a long time in jail?