Caleb McCaffery

Caleb is a target in the quest Debt Collector. The player is asked to kill him and he is located inside The Strip standing just outside of Gomorrah. If your Speech skill is high enough, you can let him walk free by just taking his hat and a few bottle caps so that the Garrett twins think that he's dead.

If you do choose to kill him however, even if you successfully get away with doing so, the entire game will malfunction and shutdown from that point on while trying to enter through the north gate, effectively disallowing any further progress in the game. Most of these complaints however have only seem to have occurred on X-box format.

Note: Will ALSO affect the PS3 version as well. Easily fixed by buying an Old cowboy hat (which uses the same model) and wearing it upon reentry to the strip fixes the problem.

Background
He had apparently left the Atomic Wrangler because of the work that the player had done in Debt Collector implying that he was the Garrett's enforcer - and had apparently done a poor job at it. He had stolen a large number of caps upon leaving which is why the Garretts want him dead.

On speaking with the player character, he is condescending and arrogant which can make killing him a tempting option.

Fixing The CaMc Glitch
Presently the only way to circumvent the glitch is by wearing Caleb's hat upon entrance into the strip area, orby buying an "Old cowboy hat" at Mick and Ralphs in Freeside or the Crimson Caravan. The monorail still allows access to the strip if this glitch occurs, but it will be difficult to cross if you are on bad terms with the NCR.

Bugs
Occasionally Mcaffery will still be present in The Atomic Wrangler when Francis asks you to kill him. This will cause the guards to attack him. He will remain friendly to you until attacked but you are more than welcome to help out with no penalty.

It is possible to assassinate Caleb using an Anti-Materiel Rifle glitch. Equip the rifle with incendiary rounds, target Mcaffery in V.A.T.S then cancel V.A.T.S. He will spontaneously combust, losing a small amount of HP, repeat until dead.

Appearances
appears in Fallout: New Vegas.