Shirouo no Odorigui atlasobscura.com

Odorigui refers to the feeling of eating live sea creatures, or “dance-eating.” When it comes to shirouo no odorigui, the creatures dancing to their death are minnow-sized, transparent fish.
In Japan’s Fukuoka prefecture, diners down these fish, also known as ice gobies, in shot glasses.
While the origin of this tradition is unknown, some speculate that it began in Fukuoka 300 years ago.
The practical angle for this ritual argues that because ice gobies decay rapidly once killed, eating them alive is as safe as it gets.
Today, as with most hyper-fresh seafood, living ice gobies are considered a delicacy.