" The important thing is not to shout at this point, Vimes told himself. Do not…what do they call it…go postal? Treat this as a learning exercise. Find out why the world is not as you thought it was. Assemble the facts, digest the information, consider the implications. THEN go postal. But with precision. "

― Terry Pratchett , Thud! (Discworld, #34; City Watch #7)