Mad Scientist

Mad Scientist is a challenge in the Fallout: New Vegas add-on Old World Blues.

Challenge requirements
Have an experiment go horribly awry.

Walkthrough
In the X-8 building, take a left after you enter. Proceed in this direction until you reach a room with a RobCo console. Interact with the console, and choose to splice a dog and a lobotomite. A bloody mess will ensue.