My article “Reversing the Side-Effect Effect” has just come out in Philosophical Studies 172 (1): 177-206. This was authored with Paul Stey and Mark Alfano. In the paper, we demonstrate that we can control the effect by changing what norm is made salient. Norms set expectations it appears. If one’s side effect violate those norm-based expectations, we tend to say that side effect was intentional. There are a number of philosophical issues this raise pertaining to intentionality and other psychological states like belief, knowledge, and desire. You can read the extended summary here in my previous post.