On Saturday, Narathiga (not his real name), a 20-year-old student, went fishing in Japan just like he does every month.
It was a rainy day, and Narathiga's fishing rod needed repairs, but he found a new rod and then carried on to do some fishing.
He had a successful day, catching a big, beautiful fish covered in blue patterns, and tweeting about how excited he was to eat it.
However, Narathiga hadn't caught a thread-sail filefish. He had actually caught a scrawled filefish, which has a toxin in its intestine 70 times more poisonous than the poison in a pufferfish. So... it's pretty poisonous.
People were understandably worried for Narathiga's health. Especially when he stopped tweeting.
"You can't eat the intestine!!"
"Are you dead?"
"Are you okay!? are you alive ?!"
Narathiga's tweets about the fish have received thousands of retweets, including one where he explains that he released the fish after reading warnings on Twitter.
Narathiga told BuzzFeed News he hoped his slight brush with death would raise awareness about scrawled filefish.
"I would've been dead instantly if my phone didn't tweet," he said.