There is an interesting exercise you might come across if you ever happen to find yourself engaged in an ethical debate over responsibility or blame. The exercise involves listening to a story and then assigning a degree of culpability to everyone in the story for its tragic end result. The story goes like this:
A married woman feels neglected by her hard-working husband, who travels a lot for his job, so when she meets another man who invites her to his house, she spends the night and the following morning rushes home to greet her husband before he arrives back from his latest business trip, but the bridge she needs to cross to get home is blocked by a madman “who kills everyone who comes near him.”