These were some of the tragedies suggested in a sensational class action filed against Toshiba Corp. by Texas lawyer Wayne Reaud in 1999.

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"Gun violence is a problem nationwide, and sadly in the state of Colorado, we are all too familiar with some of these tragedies, " Fields.

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After last week's shooting, some have said future tragedies can be avoided by arming teachers.

CNN: Obama: Proposals to address gun violence due by January

She'd been helpful and supportive when she was dealing with some very painful, personal tragedies.

CNN: Transcript: White House Deputy Counsel Mills' statement

Some respond to new historical tragedies.

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These tragedies "can completely trigger some of the nightmares and flashbacks, " damaging recovery and bringing back feelings of terror and powerlessness.

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In some cases, it may be useful to portray real tragedies on screen in order to raise awareness.

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Yet various economists, including the late Nobel Prize winner Elinor Ostrom, have shown that in some cases communities can and do come together to solve such tragedies, often finding a middle way between nationalizing and privatizing the threatened resource.

WSJ: Have We Evolved to Be Nasty or Nice? | Mind & Matter

Mission Control might also have to make some tough calls, like whether to tell an astronaut about a death in his or her family or other tragedies back home.

CNN: Mars on the brain? Red Planet pioneers to face cosmic mind trip