You've received an e-mail that angers you. Don't respond immediately.
You think that someone slighted you. Think of a plausible scenario in which the slight was unintentional.
You've emerged from a terrible encounter. Don't share your unhappiness with others.
The filter that we develop is not simply a device to spare those around us. It also forces us to reprocess our information.
Delay, deliberation, and silence have saved many a career.
One other ground rule: Not every comment deserves a response.