History Fridge / FalloutNewVegas

** Opening Vault 21, coincidentally, explains how the New Vegas Strip was able to be "open for business" rather quickly. With a community of gamblers whose generations' worth collective experience includes the dealing side of things, House has an demographic base which not only would be inclined to compulsively fund his casinos, but would have the expertise to teach the Three Families how to actually ''run'' them properly.

* Joshua Graham being affected by the Sneering Imperialist Perk is quite ironic when learning his past history. He served the Legion as the first Legate and was known for his extreme brutality against his enemies. In other words...Joshua was a [[IncrediblyLamePun sneering imperialist]]. Since then, he now leads a tribe and is affected by the same perk.

** Straight men have Cass, a badass and [[AManIsAlwaysEager promiscuous]] [[HeroesWantRedheads redhead]] that can handle herself equally well in battle, the bedroom and at the bar.

* The only people outside of the legion who pronounce Caesar correctly are Marcus and Easy Pete. Marcus is a highly intelligent super-mutant and Easy Pete...is a prospector. Now how would Easy Pete know how to say Caesar correctly? If you talk to him he mentions that he had a camp out by the Colorado River. The Legion has camps along with the Colorado, and usually don't bother merchants. Easy Pete used to trade with the Legion and picked up some of their speech patterns.
** Why does Arcade Gannon address Caesar with English pronunciation? This can be answered because why would someone who despises the Legion ever address him using the correct Latin pronunciation? Especially when you listen to Arcade's reasons behind his hate towards Caesar's Legion.

* In VideoGame/{{Fallout 3}} and VideoGame/FalloutNewVegas, blood packs heal 1 hit point per pack. In 3, you can get a perk from the leader of blood-consuming people which increases the hp gain to 20. Why do blood packs heal so little hp, when blood transfusions can save people from the brink of death sometimes? Because the [[PlayerCharacter player]] actually drinks the blood instead of replenishing his/her lost blood from an injury. The Lone Wanderer is taught how to more effectively gain health from drinking blood.
** This explains how the Sole Survivor gets more out of blood packs in Fallout 4 as well; the protagonist either fought in a war or was married to someone who did, so it's not impossible for them to know how to perform a blood transfusion. Notice that in 3 and New Vegas, you hear a gulping sound when consuming a blood pack, implying the drinking of blood. In 4 you hear a rustling sound as though plastic is being squeezed. This sound is identical to you using Radaway - implying a different way of introducing blood into the body.

* At the end of the game (assuming you're not backing the Legion), you can use your Speech skills against Legate Lanius to convince him that the Legion's attempts to expand into the west will cause the organization to weaken due to its policy of fully integrating conquered peoples into a mono-cultural centralized government. A similar factor in real life caused the Roman Empire to collapse. And in the event that you don't successfully convince him to withdraw, one of the easiest ways to defeat Lanius is to set numerous explosives at the conveniently-placed stairway landing just before him, falling back when he attacks and letting him run on top of those bombs and blowing himself to the moon. Why is this FridgeBrilliance? Because this scenario directly parallels how the Legion was defeated at the first battle of Hoover Dam by way of trickery and explosives when Graham was their Legate; so for all of them boasting the Legion and Lanius himself makes of him being superior to Graham, he can be [[DeathByIrony personally defeated by the same tactics]].

** At first, it seems like FridgeLogic that wearing Brotherhood of Steel power armor will get you shot on sight by NCR, while no one in the Wastes bats an eyelid at you storming around in a suit of Enclave power armor. Then you realize that not only are the Brotherhood are a present threat, but the Enclave has been gone for a couple of generations, and also the number of Wastelanders who've ever actually seen an Enclave soldier ''and lived to tell the tale'' is probably extremely small.

* If you take a look at Caesar's SPECIAL stats you will find out that he only ranks 4 in both charisma and intelligence. It first seems like FridgeLogic since he is supposed to be extremely charismatic and also possess very high intellect. But after you find out that he is suffering from a brain tumor, it makes sense that his skills were being affected as a result of it.

* Why is the Courier consistently insulted by Legionnaires regardless of what they do for them? To serve as a reminder that they don't necessarily need you. The Legion offers you few side quests, most of which are just minor preparations before the battle because they don't need you to do major work for them. In comparison, the NCR has a significant amount of side quests including training troops, fixing equipment, rooting out spies, exterminating extra problems like the Fiends, and reclaiming territory from the Legion. Result; by the end of all this, the NCR sees you as a true hero which would lead to them being incredibly polite and in awe of your talents, but to the Legion you're just a guy who's quite good at fighting, so they have little reason to treat you as anything more than a very good mercenary.

* The NCR Ranger stations are named after military alphabet designation (Alpha, Bravo, Charlie, etc). Camp Golf, the Rangers' headquarters, is the House Resort, which has a golf course with some of the old signs being used around the tents. At first, it seems like Camp Golf is named so because of the golf course, but looking at military letter designations, "Golf" is for G. The '''f'''inal Ranger station is Foxtrot, for letter F. Knowing Obsidian, it was probably both, as a StealthPun

* The NCR Ranger stations are named after military alphabet designation (Alpha, Bravo, Charlie, etc). Camp Golf, the Rangers' headquarters, is the House Resort, which has a golf course with some of the old signs being used around the tents. At first, it seems like Camp Golf is named so because of the golf course, but looking at military letter designations, "Golf" is for G. The '''f'''inal Ranger station is Foxtrot, for letter F. Knowing Obsidian, it was probably both, as a StealthPun

* The Gun Runners being able to replicate Pre-War designs also explains why there's seemingly little shortage of more sophisticated arms in the Mojave, such as the Assault Carbine and Anti-Materiel Rifle, despite these being otherwise available only in caches around Nellis AFB. Where there likely wouldn't be enough functional guns after 200 years to keep the NCR Rangers alone well-stocked, there's still enough for the Gun Runners to tinker with and reverse-engineer in order to make more.

* Looking at Joshua Graham and Daniel's respective weapons seems a bit strange at first when you take into account their attitudes towards violence. The BloodKnight ex-Legionary Graham carries a small (though heavily customized) .45 pocket pistol, while the ostensibly peaceful, near-pacifistic Daniel is armed with a huge, heavy .45 SMG (a Thompson in all but name). But thinking about it further, it makes perfect sense. Graham's gun, [[ICallItVera A Light Shining In Darkness]], is carried on the hip and can be easily drawn and fired in haste (in addition, the custom 'trench' sights it has are designed to aid in snap-shooting at close range). Being a relatively small gun firing a relatively large catridge, it also takes a lot of strength and experience to properly handle the recoil and lots of practice at reloading to use a weapon with a small magazine effectively in combat (and the weapon does, in fact, have a high Guns skill requirement of 75). This is exactly the sort of weapon someone like Graham- restrained, but extremely experienced at solving problems with violence and itching for the opportunity to do so- would use. Daniel's gun, meanwhile, is carried in an awkward position on his back, making it difficult to reach for in a hurry. Being a large, heavy two-handed weapon means it's much easier to aim accurately and control the recoil (game balance dictating a low base accuracy aside). But when it is drawn and used, it has firepower to spare. While Daniel clearly detests violence, his status as a missionary does not mean he's unwilling to defend himself or others- thus he carries enough firepower to do exactly that.

* That a Good Karma Courier initially works for the NCR but eventually decides to go Wild Card makes sense within the story, considering that s/he must work for [[GeneralRipper Colonel Cassandra Moore]], and may come to the conclusion that people like her should not be in charge. .

** While speaking with Dr. Mobius in ''Old World Blues'' about how to defeat the Think Tank without violence, he'll shrug (as much as he can, anyway), and suggest appealing to their humanity. He quotes: "Well, there's many things they have forgotten sitting in their bowls. Friendship. The thrill of discovery. Love. Masturbation. The usual." At first glance, this just seems like some funny line of dialogue with a BreadEggsMilkSquick joke to it...except ''all'' of those things are ''exactly'' what you can do to talk the Think Tank down! [[LargeHam Borous]] can recall his love and fondess for his dog, Gabe. [[TheUnintelligible 8]] can be thrilled when he sees how well the Sonic Emitter he created works after it's upgraded, as well as learn a thing or two about empathy if you opt not to hack into him. And [[CovertPervert Dala]]...[[ADateWithRosiePalms gets quite excited at watching you breathe]]. This also accounts for how thick the innuendo is spread over the whole DLC, what with sonojaculation, X-13 ''filling'' the stealth suit up, and other instances. You're in a research facility, isolated from the outside world even before the great war, especially with only one female on the team. It makes sense the Think Tank would be sexually pent up, especially after they had to be put in brain jars to survive.

* Looking into the GECK, 10 of Spades has hight Melee skills than Guns. This is odd at first for a sniper, until you realized he trained his CQC after the incident with Cook-Cook, so that kind of scenario never happened again.

* "Going postal" is an idiom for becoming uncontrollably angry to the point of violence. You work as a normal Courier, until you get shot in the head, and then turn into an UnstoppableMailman on a mission of [[https://tvtropes.org/pmwiki/pmwiki.php/main/revenge Revenge]].