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“”Tragedy is when I cut my finger. Comedy is when YOU fall into an open manhole and die.
|—Mel Brooks, The 2,000 Year Old Man (1961)|
Schadenfreude is the act or emotion of taking pleasure in the misfortunes of others. The word is from the German meaning "harm joy", as a noun, it is capitalised in German, but not usually in English. While in its simplest form, it is a feeling of relief or gratitude at not having misfortune befall oneself and does not represent an active desire for harm to befall others, it can be malicious. Schadenfreude is usually considered mean-spirited, notably by those whom
the joke is on the misfortune befalls, and is a form of sadism.
 Who Does It?
Well, everyone. No, seriously; everyone to greater or lesser extent. Yes, you too.
The entire basis of slapstick comedy is schadenfreude; be it getting hit on the head with anvils, poked in the eyes, or entirely unable to succeed at one's attempts [we'll need a link to goofy here]. Beyond slapstick, the "higher" forms of comedy also make use of schadenfreude. Accidents, misunderstandings, and troubles that befall a character can be funny (more so when brought on by themselves).
Despite it being ever-popular and ever-present, issues of morality or concern are raised depending on the subject matter. As humans, we are expected to be able to show empathy or sympathy towards others, and so it is considered callous, cruel, or even psychopathic if we fail to do so. The same applies to schadenfreude; the more grievous the misfortune, the less acceptable it becomes to laugh at it. A staple of black comedy is the art of finding a tactful way to joke about such taboo topics. (Of course, this also lead to what is known as Dead Baby comedy, which pokes fun at social acceptability itself using a refuge in audacity.)
Demonization refers to the practice of labeling ones enemies, opponents, neighbors, windmills, and so forth as being somehow "less then human", and therefore not worthy of the same considerations. This is usually done by convincing oneself or others that "they" are pure evil, and intent on nothing more then the destruction and enslavement of everything "we" love.
Thanks to this, and the false dichotomy that forms around the "Us or Them" mindset, some groups find schadenfreude in any form of misinformation, from tripping to terrorist attacks, that befalls their perceived enemies. This often makes them appear callous, cruel, or even psychopathic, which may or may not be justified.
The nature of fundamentalism is such that their perceived enemies are prolific, and therefore too are the misfortunes upon them. Frequently, this sort of misplaced schadenfreude will contain Biblical overtones, usually of the hell and brimstone variety, explaining how whatever recent tragedy has befallen said enemy is the result of their "sinful ways". Often, this will be followed by an encouragement to
send money convert.
Almost every fundamentalist does this at some level, but among the most grievous offenders is Fred Phelps. Perhaps no one is a better example of schadenfreude gone wrong; holding signs with slogans akin to "Thank God for Dead Soldiers", this man and his church have brought down the ire of everyone from bikers to Fox News.
Similar to what occurs with religious fundamentalists, those holding extreme political views will often look at their opponents as somehow deserving of retribution. Within ones own country, politicians are usually less likely to be open about this sort of schadenfreude, as it makes them look like a dick and alienates voters. If the target is another country, or regime, however, it becomes more acceptable.
Sport is not immune from schadenfreude. A rival team's defeat, by a third party, is often greeted with jubilation. Similarly, a rival team's defeat by a team one is supporting is especially greeted with celebration.
- Avenue Q - Schadenfreude - If you still don't get it, here's a little song explaining schadenfreude in all its glory.