Tuberculosis pill up 2,000%.

[ZenOps]

http://www.cbc.ca/news/health/tb-drug-price-cycloserine-1.3237868

"Overnight in North America, cycloserine went from $15 US per pill to $360 US."

[sputnik]

Rescinded the next day.

http://www.nytimes.com/2015/09/22/business/big-price-increase-for-tb-drug-is-rescinded.html?_r=0

[killramos]

This just in. Gas went up in price. Shell CEO stepping down over social media backlash.

Oh wait that's ridiculous.