Dark Souls/Fridge

Fridge Brilliance

 * Quelaag
 * Another really brilliant theory is that
 * The Crestfallen Warrior describes Frampt as having very terrible breath. The fact that the serpent will eat just about anything probably has something to do with this...but if one offers to feed him a Dung Pile, they'll see he offers a surprisingly high price of 200 souls. Frampt must really enjoy the taste of fecal matter.
 * Remember the gigantic, gigantic rat you fight in the Depths? If you look closely enough, there's an axe embedded on its left eye. Now do you remember that one of the corpse on the upper floor (that you can access via the Butcher's chute) has a Spider Shield? Both the Axe and the Spider Shield are the Bandit's starting class, and in that area particularly are freshly killed human beings, one with a Humanity attached to it. Yes, there were bandits that attacked the damn thing and they didn't survive to tell the tale. Poor bastards...
 * The Man-Eating Oysters in Ash Lake have five legs to support them. Yet they are unbalanced due to their body structure. So top-heavy in fact, that they actually have poor stability in-game and nearly any strong attack (except from smaller weapons) will throw them off balance. The strong attack from an Ultra Greatsword will actually make them flip backwards, flailing their legs.
 * Crosses into Fridge Horror considering the way some items  in the game are implied to have been made.
 * You can get the armor and weapons from a lot of characters by effectively leading them to the events that cause their death. For example, you invade Lautrec's world and kill him, while Beatrice dies sometime after she helps you kill the Four Kings. One odd exception though is Iron Knight Tarkus; whether or not you summoned him for the Iron Golem, you'll always find his armor under the painting in Anor Londo. But then, if you do summon him, you'll see that he's perfectly capable of handling the Golem all by himself! In Tarkus' world, he was able to get past the Golem without any outside help.
 * Why do you find Paladin Leeroy's body and armor in Gravelord Nito's chamber? Remember how you can stir up skeletons by moving into certain places of the tomb, and how the fight is generally easier if you stay out of the southern area (where all of the Giant Skeletons are)? Looks like while Leeroy was attempting to fight the Gravelord himself, he lived up to his original namesake.
 * If you look at the two elevators in the room where you fight Ornstein and Smough that lead up to Gywnevere, they are completely different sizes. One could pass this off as asymmetrical design, which is strange in a place like Anor Londo, where a lot of the scenery is perfectly aligned. Then you remember a certain trait pertaining to Smough and that larger elevator on the right makes a lot more sense.

Fridge Horror

 * Giant rats drop Humanity. Think about that.
 * That probably doesn't mean what you think it does. They're giant rats. Just like you find corpses with humanity, they most likely end up eating remains with humanity left in them. In the case of the giant giant rat, it probably just ate a guy or something.
 * In Duke's Archives you will encounter strange, squid-head monsters called Pisaca. In the area you fight them in, you will find two non-hostile ones cowering in the corner and if you get near them you can hear girls sobbing. If you kill them, you receive two healing miracles, and their descriptions state that they're special miracles granted only to the maidens of Gwynevere, Princess of the Sun. All of these creatures have a chance of dropping Humanity, and the Duke's Archives is used for some unspecified horrifying experiments...
 * The above is made even worse by the fact that
 * In a radio interview, the creators state that the
 * Which still doesn't mean  Still, both are subject to Wild Mass Guessing.
 * The Purging Stones are extremely important and useful items capable of removing curses, the most debilitating debuff in the game. However, the item description states that humans are powerless against curses and can merely redirect their influence and that the stones were once human or some other creature. When you use a Purging Stone, you aren't erasing the curse but merely directing it towards some already tortured or dead individual. Arstor, the Earl of Carim was a messed up dude.
 * A good way to acquire Twinkling Titanite is to harvest it from the Man-Eater Shells found in the Crystal Forest and Ash Lake. Man-Eater Shells, which are basically giant demonic oysters, are filled with human skulls. By the way, did you know they also drop Purging Stones? Does it mean that the creation of Purging Stones mean feeding people into these walking horrors?
 * Arstor, the Earl of Carim was also responsible for the "Bite" rings, which grant resistance against a variety of debuffs. Though nothing specific is named, the game goes out of it's way to tell you that the process for creating these rings is abominable.