The principle for Day #20 on the 101-day book report says: "Allow others to work out their differences."
This is a tough one. I have friends that are feuding and can't even talk to each other anymore. They're mad at their workmates, their management, and their spouses.
I want to get in there and help them fix things. But I can't. And on that rare occasion when I come into the office, they vent for a while and ask how I'm doing.
I tell them that I can't remember the last time I had an argument.