One for My Baby

One for My Baby is a companion quest in Fallout: New Vegas.

Detailed walkthrough

 * 1) Go to Novac between 9 PM and 9 AM. Find the giant dinosaur and enter it. Once inside, head up the stairs and go through the door at the top. You should meet a man named Boone. Talk to him about his wife and you will receive the quest to find out who sold his wife off to slavers so he may kill them. He also gives you his beret to wear as a signal to fire on the person you bring in front of the Dino.
 * 2) You are then given the task to talk to select inhabitants of Novac. Luckily, you only need to talk to one of them in order to progress in the quest. This person is No-bark Noonan, an older man that seems a little out of his mind. You can find his shack behind the motel. Talk to No-Bark about Boone's wife and he will tell you about strange business in the motel lobby. If you have a high enough Speech level you can finish the quest without evidence. Just talk to Boone after talking to No-bark Noonan.
 * 3) Head to the Dino Dee-lite front desk and check behind the counter to find a safe in the floor. This safe is locked and will require you to either pick it (Easy skill) or pickpocket the key from Jeannie (there is no loss of Karma). Inside the safe you will find a note titled bill of sale. This document tells of how Jeannie May Crawford sold Boone's wife off to Legion slavers.
 * 4) Now that the evidence has been obtained, wait until Boone is at the sniping spot (between 10 PM and 9 AM) to confront Jeannie and ask her to take a stroll with you in front of the dinosaur. Once in front of the dinosaur, put on the beret and Boone will kill Jeannie (remember that Boone has to be in the T-Rex before the dialogue choice that allows you to lure Jeannie May to get shot appears).
 * 5) Head up to Boone. He will ask you how you knew it was her and you can tell him about the bill of sale you found. If you did not get the evidence, it is possible to pass a Speech check (55 Speech required). If that fails he may try to kill you or get angry, snatch his beret back, and say that he doesn't ever want to see you again, eliminating the option of him being a companion. If you told him about the evidence, you can keep talking to him and convince him to become your companion.

Alternative walkthroughs

 * Instead of having Boone shoot the culprit Jeannie May Crawford, you have the option to frame one of several Novac townsfolk including Alice or Dusty McBride, Cliff Briscoe, Manny Vargas, Ranger Andy, or No-bark Noonan. Be cautious, because these characters may be needed for completing other quests.
 * To complete this quest without loss of Karma, have Jeannie May shot by Boone, loot the safe key from her corpse and retrieve the bill of sale. Take the item directly to Boone and the quest will be completed without ever having to talk to anyone else.

Behind the scenes
The quest's name is a reference to the famous torch song "One For My Baby (and One More For the Road)" by Harold Arlen and Johnny Mercer. It was popularized by Frank Sinatra, Dean Martin, Sammy Davis, Jr., Billie Holiday, and more recently, Hugh Laurie.

Bugs

 * On rare occasions, non-player character's (including Jeannie's) AI walking script will stop working. As a workaround, the player must push the non-player character to the location to complete the quest. A more convenient alternative is to get to your intended position, open the console and type in two commands: (selecting Jeannie after telling her to go in front of the dinosaur),.
 * Sometimes you will not have the talk option to make Jeannie May follow you in front of the Dinosaur. The best way to fix this is to talk to Jeannie outside when she leaves around midnight or talk to her in her home while she is sleeping. If this doesn't work, simply exiting and then re-entering the Dino-Deelite Lobby or Jeannie May's house will bring back the dialogue option.
 * Obtaining the evidence before talking to No-Bark will result in a quest completion for the optional objectives.
 * Sometimes the evidence will not appear in the safe, halting your progress unless high enough speech is available to convince Boone without it.
 * Sometimes upon trying to complete the quest, there will be no dialog option to show Boone the Bill of Sale, rendering the companion recruitment broken. (Note: This bug may be due to having a negative reputation with the NCR. Regaining a positive reputation with them may fix the dialogue gap.)
 * After completing the quest Boone's beret might remain in your inventory.
 * If the Courier tells Jeannie to go stand in front of the dinosaur and he/she doesn't have Boone's hat on, Jeannie won't get shot and the option to take her to the front of the Dino will disappear forever.
 * Waiting for her to go out on midnight and saving/reloading occasionally fixes this bug.
 * Just after completing this quest, when you leave Boone up in the mouth, you may come out to find Boone re-entering the gift shop and going up to the mouth as if starting his shift.
 * Sometimes if the Courier tells Jeannie May to go in front of the dinosaur, it will give the compass tick for Boone being in the mouth of it. If the Courier then goes into the dinosaur, Boone will be inside the gift shop, aiming at the wall/stairs and not moving.
 * Sometimes if the Courier is under the influence of alcohol products (beer, wine, whiskey, scotch, etc.), and if you decide to have Jeannie killed, the prompt to ask her to stand in front of the dinosaur will not appear. If you are under the influence, you must wait until their effects are gone.

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