Make a shank.

From Create Your Own Story

You make a homemade knife out of some simple stuff the guards give you. In your time in the courtyard, you stab some idiot you don't like. There are a lot of idiots you don't like. His blood splatters everywhere and you feel happy, just as you did when you killed that son-of-a-boss that your boss was. You keep stabbing him until the prison guard shoots you at point blank with a shotgun.

The End.