Mister Holdout

Mister Holdout is a shady fellow living on the New Vegas Strip

Background
Mister Holdout is willing to sell holdout weapons to people looking to get into casinos on the New Vegas Strip. He is standing outside of the Gomorrah casino and will hail the Courier when they first pass him.

Effects of player's actions

 * He will not sell his merchandise to the player if they have positive reputation with the Strip. Conversely, he offers a discount if the player has infamous reputation.
 * If one's reputation with the Strip is liked or higher, sometimes just standing or passing near him will cause him to spontaneously warn the player to stay away from him. If the player stays there, the warning will be repeated again and again.
 * Killing him will cause the player to accumulate negative reputation with the NCR, though not with the Strip itself.

Other interactions
During interactions with Mister Holdout, the player can pass a Sneak check of 50 for XP.

Appearances
Mister Holdout appears only in Fallout: New Vegas.

Behind the scenes
Holdout is a term for concealing and hiding cards on one's body. Additionally, a holdout gun is another name used to refer to a pocket-pistol or derringer: handguns of very small size and caliber, making them easy to conceal, and meant to be used in emergencies or situations where conventional weapons are inaccessible.

Bugs
If you convince him to sell bigger holdout weapons with the Sneak check, his inventory may nevertheless not change.