Stealth Boy (Fallout: New Vegas)

The Stealth Boy is a consumable item in Fallout: New Vegas.

Characteristics
The RobCo Stealth Boy 3001 is a personal stealth device worn on one's wrist. It generates a modulating field that transmits the reflected light from one side of an object to the other, making a person much harder to notice (but not completely invisible).

Side effects
While they seem to not have any adverse effects on humans, stealth boys increase the risk of schizophrenia in super mutants. This is especially dramatic in the case of the nightkin, who, as permanent stealth boy users, nearly always show one or several symptoms of paranoid schizophrenia, such as paranoia, hallucinations, and/or delusion. Doctor Henry in Jacobstown is researching these side effects, hoping to develop a means to help the nightkin.

Locations

 * One can occasionally be found in Victor's shack in Goodsprings.
 * One can occasionally be found in the duffle bag in the Goodsprings gas station.
 * One can occasionally be found in an ammunition box in the store of the Nipton Road Reststop.
 * One can occasionally be found in a Duffle Bag in the eastern barn at Matthews Animal Husbandry Farm.
 * One can be found in the Goodsprings schoolhouse, in an easy lock safe.
 * Another can also be found during the quest Ghost Town Gunfight, on the corpse of Joe Cobb.
 * Several can be found in the REPCONN Test Site if you pay attention. Note: One nightkin's body will contain a stealth boy if you wait long enough and come back, with a relatively high success rate. The body lies between the two small staircases parallel to each other; perpendicular to the long hallway with the dead-end room. His body is surrounded by multiple empty bottles of soda on first find.
 * Two can be found in the average locked safe, upstairs of the main level, in the room with the large semi-circular wooden desk and terminal REPCONN Test Site.
 * Two can also be found in the REPCONN Test Site in a room with two "easy" locked doors in an "easy" locked safe up stairs from the main entrance.
 * One can be found in the REPCONN Test Site, right next to the dead nightkin as you walk in the front door.
 * One can be found in the same location, on one of the tables in a room with the sign "Food".
 * On the way up the path to REPCONN Test Site from Novac you can find one in an ash pile on the floor.
 * There is a random chance to spawn in nightkin corpses. More likely if it hasn't used the stealth boy yet. In that case, high Perception, Spotter, or Enhanced Sensors always helps.
 * In the Lucky 38 cocktail lounge, you can find one in an average lock small floor safe behind the bar, along with a plasma defender.
 * Veteran Atticus in Caesar's Legion Safehouse will give two to the player for free every time he is at the safehouse making him the only indefinite supply of stealth boys in the Mojave.
 * One can be found in the middle of Jack Rabbit Springs beside a skeleton, along with a Weapon repair kit
 * Infinite stealth boys may be obtained by calling in for supplies VIA NCR Emergency Radio, but the chance of getting one is random.
 * One of the 'Legion drop boxes' during Caesar's Favor gave an overwhelming 51 stealth boys.
 * 1 stealth boy can be found in Vault 11 in an ammunition box behind a Locked door:Hard that is directly next to security office, or in a box in the security office.
 * 1 stealth boy can be found in the mess hall & munitions storage area of Nellis Air Force Base. They are located in the ammunition boxes (must be stolen).
 * One can sometimes be found in a duffle bag inside the trailer (towards the back) at the Raided Farmstead(Random).
 * One can be found in an ammunition box in Bradley's Shack (Random).
 * Approaching the cattle pen in Brooks Tumbleweed Ranch reveals a nightkin who offers to sell you a 'Wind Brahmin' (a tumbleweed) for all your caps. He will then give you a stealth boy as a gift. Killing the nightkin afterwards or pickpocketing him produces another stealth boy as well as all your caps back.
 * Jacobstown inside the Jacobstown Lodge in one of the upstairs bedrooms in an average locked safe.
 * Sometimes found in a sack in the Atomic Wrangler Casino behind a very hard locked door.(must be stolen)
 * One found in a footlocker at Camp McCarran Concourse... immediately turn right after proceeding from the main terminal, into the area with troop bunks... the footlocker is on the floor at the back wall, between the 7th and 8th sets of lockers, counting from the entrance to this area. (**Steal/ Negative Karma**)
 * Two can occasionally be found in Walking Box Cavern in 2 duffle bags at high levels.
 * One sometimes can be found on Traveling Merchants throughout the Mojave.
 * One can sometimes be found in an upstairs gun cabinet located in the SW corner of Puesta del Sol south, past the ruined cafe. Must pass through The Cloud to get there.
 * Can sometimes be found in any of Dean's secret stash suitcases.
 * 1-5 Stealth Boys can sometimes be found in the locker located inside the Sierra Madre Vault.
 * Can sometimes be found on dead Robo-scorpions
 * One is rewarded after completing the final test in the X-13 Research Facility