The 2010 mine explosion and collapse at the Upper Big Branch Mine in West Virginia that killed 29 miners played a role in the slowdown.

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Eleven people were killed, including nine Transocean employees, in the April 20 explosion and collapse of the rig, which gushed crude oil into the Gulf of Mexico for 86 days.

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Theorists believe the rapid collapse generates heat that ignites the explosion.

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The explosion caused the whole building and residential houses to collapse.

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The emotional explosion of tears meets with the brainwashing of office etiquette and you get this half-dismissive, half-collapse that is uniquely the office cry.

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