A couple people have mentioned Sapolsky and he came to my mind also. Here's a comment I made a while back along the same lines on an article about why swearing (as a form of venting) does work (https://news.ycombinator.com/item?id=12229422). Sapolsky again on rats and baboons (from Why Zebra’s Don’t Get Ulcers):
A variant of Weiss's experiment uncovers a special feature of the outlet-for-frustration reaction. This time, when the rat gets the identical series of electric shocks and is upset, it can run across the cage, sit next to another rat and... bite the hell out of it. Stress-induced displacement of aggression: the practice works wonders at minimizing the stressfulness of a stressor. It's a real primate specialty as well. A male baboon loses a fight. Frustrated, he spins around and attacks a subordinate male who was minding his own business. An extremely high percentage of primate aggression represent frustration displaced onto innocent bystanders.
I recently left a job and boss where this dynamic was very much in play (more blaming than biting but obvious displacement aggression all the same).
My conclusion: swearing (venting) might be seen as a more civilized form of displacing stress-induced aggression.
A variant of Weiss's experiment uncovers a special feature of the outlet-for-frustration reaction. This time, when the rat gets the identical series of electric shocks and is upset, it can run across the cage, sit next to another rat and... bite the hell out of it. Stress-induced displacement of aggression: the practice works wonders at minimizing the stressfulness of a stressor. It's a real primate specialty as well. A male baboon loses a fight. Frustrated, he spins around and attacks a subordinate male who was minding his own business. An extremely high percentage of primate aggression represent frustration displaced onto innocent bystanders.
I recently left a job and boss where this dynamic was very much in play (more blaming than biting but obvious displacement aggression all the same).
My conclusion: swearing (venting) might be seen as a more civilized form of displacing stress-induced aggression.