Mr. A. E. Pessimal stopping Brick the Troll from killing the comander of the City Watch, Sam Vimes. Mr. Pessimal is a friendless clerk who has been coerced into joining the police special duty section. It brings out the lion in him. Attacking a troll by yourself is generally not recommended. Have no idea what I'm talking about? Read "THUD" by Terry Pratchett. You won't regret it.