[mousepod]

Cherny, the guy I work with has a great technique for following up a particularly harsh dressing down: send an email to the person saying how good it was to talk to them on the phone about getting the situation resolved and how you are looking forward to the positive outcome that will undoubtedly result as a consequence of the conversation. Never even allude to the fact that you lost your temper. When all is said and done, you've let off steam, put the fear of God into an incompetent, and left a tidy email trail.

(I did it yesterday)