On reading the Wikipedia I find that this noisy behavior of intestines is attributed to normal aspect of digestion.
This role of flatulence as a stress reliever I can frequently confirm in my own self. I have found that if someone cuts me off on the road, or irritates me in some other way, and I can do nothing about it, like give him the "finger" - the jerks make sure to avoid your gaze after intruding into your space behind the safety of their car - after a little while, I develop a slight discomfort in my chest which rapidly changes in to a queasiness in my intestines. The psychological feeling accompanying it is as if I am bloated and carrying excessive baggage. Then I perceive the urge for flatulence, which when indulged in, takes away the discomfort and along with it the perturbed mood, anxiety and the anger towards the piece of shit who had cut me off. The whole process seems to me as a method which my system utilizes to take away the tension off my chest back to the outside world from where it came, accomplishing it through the medium of my bowels .