Background: there are four of us in my team, we all share the same office.
A couple of days ago, a heated argument broke out over a feature that was being implemented, between the three other team members, with shouting and (mild) insults.
As an external viewer, I could see that they were arguing over a dumb misunderstanding, and that everyone had their reasons, they just needed to calm down and decide what to do.
I however did not intervene, and as it was almost time for my usual break, I just walked through the door, took my cup of coffee and let them calm down before entering again.
Is what I did ok? Shoud I have said something?