Pranksters are posing health issues and harming the reputation of Japan's conveyor-belt sushi restaurants. Several diners have posted prank videos on social media. These include people licking soy sauce bottles and chopsticks, and licking their fingers and then touching the food on the revolving belt. This has shocked people in Japan. They are calling it "sushi terrorism". The incidents made the share prices of a leading sushi chain plummet. Many restaurants have taken action to combat the pranksters. They have installed security cameras and provided disinfected eating utensils.

Sushi restaurants are ubiquitous in Japan. They offer good quality, cheap food in an informal, spotlessly clean, casual setting. Industry analysts are saying sushi terrorism could threaten the future of revolving sushi restaurants. One video clip has been viewed 40 million times. The restaurant the prankster targeted has filed a lawsuit against him. It is claiming compensation for damages. A newspaper reported that there is a lot of outrage on social media from Japanese people. They believe the pranksters are showing "contempt for the country's high standards of hygiene".