Retweeting may be one of the most casual possible gestures, but it may also have earned a South Korea man a jail sentence of up to seven years.
Park Jeonggeun's offending retweet? "Long live Kim Jong-Il," a reference to the deceased leader of North Korea, who died in December.
It's illegal under South Korea's National Security Law to commit "acts benefiting the enemy" -- the enemy in question being South Korea's neighbor to the north. (Park tweets, in Korean, under the handle "seouldecadence.")
Authorities were apparently not swayed by Park's follow-up tweet, which involved an "altered" photo of "a smiling North Korean soldier holding a weapon, adding [Park's] own frowning face and a bottle of whiskey." Amnesty International has spoken out in Park's defense, accusing South Korean leaders of "failing to understand sarcasm."