Shoot one of them.

You pull out your M16 and shoot a barrage of bloody bullets at the bald guy. His torso flies off and the other guy runs.

You halt your fire and a guard walks up behind you.

"You're fired."

"For what?"

"You shot one on their own. You can't shoot one and not the other, moron. Rot in prison."

You're thrown into the slammer for reasons unknown.

You rot in prison and get shanked later on.

The End.

Oh, and why is this prison's legal system so screwed up, you may ask?

Because it is. The guards are crazy. It's to make a funnier story.