I Am Not Left Handed

I Am Not Left Handed is a challenge in Fallout: New Vegas.

Effects
It gives 100 XP, but adds no perk. It is recurring.

Requirements
Cripple 100 enemy right arms (or equivalent). This includes right claws and right forelegs of animals and abominations.

Behind the scenes
The challenge takes its name from a quote from the movie "The Princess Bride".