To deprive a Heavy Metal band of its dignity, artistic integrity and credibility! Any certain band deserves to be 'De-Metalized' if their music is too humorous, sentimental, romantic, cheesy or has deviated from their original core sound and have opted for commercialism instead! You can 'De-Metalize' a Metal band only if they have sold-out. You can do this by ranting disrespectful remarks towards them amongst fellow 'Metalheads' who also despise a certain band (further ruining the bands reputation!) or by posting your own definitions on urbandictionary of what bands must be 'De-Metalized'! If the band became a bunch of sellouts they've practically 'De-Metalized' themselves!! All the Glam bands (Quiet-Riot, Motley Crue, Poison, Ratt etc.) from the Sunset strip should all be De-Metalized, because they were never 'Metal' to begin with!

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.