Duck says stress is often a factor in sending us over the edge. He sees stress at play in jess cavender's response to an armed robber. Dug was furious at being robbed, and his rage allowed him to take his wallet back from the barcelona thieves. The threshold for snapping and the drivers of violence can vary between people. Sometimes the right thing to do is to be the marine and charge after the threat. And sometimes that's going to get you killed. But as a species, the group as a whole, will survive,. cause somebody's going to do one thing and somebody's gong do something else. You're listening to hidden brain. I'm shankerve