Dilbert is the main character in the eponymous comic strip written and illustrated by Scott Adams. He’s an engineer who suffers a micromanaged, bureaucratic office environment, at least from 9 to 5.
Sometimes enough is enough and for William “D-Fens” Foster that point was reached in Falling Down. Dressed in his business casual work attire the disgruntled former engineer went on a rampage stealing weapons and confronting anyone that looked at him funny. That’s not really what you would expect from a man with a pocket full of ballpoint pens and a briefcase.