When a seemingly mutually beneficial and functional relationship is cut off by one party without good reason.

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.

To betray; To stab in the back

when someone publicly humiliates and embarrasses their hometown on primetime national television or any other mass media

When some one who is close to you and you have known for a while makes a decision that completely ruins the relationship in mere seconds.

To choke under pressure at the times when it matters despite enormous potential.

le-bron-d ex: Cleveland just got LeBron'd.
1.To abandon.
2. To leave behind in turmoil or chaos-Related forms.

-Synonyms: abandon, walk out, forsake, leave behind.