Fourteen children have been hospitalised after eating a box of 'rated 18' spicy crisps.
R18 snack is made with spiciest pepper in the world
Tokyo's Rokugo Koka High School had to call for help after 13 girls and one boy - all first year students - were suffering with nausea as well as stomach and mouth pain after a boy shared the "R18 curry chips" with 33 members of his class.
One student had to be taken away in a wheelchair, and Isoyama Corp, the company who manufacturers the extra spicy snack, said it "sincerely wishes for the swift recovery of those who have reported feeling unwell".
The firm makes a range of other snacks intended for over 18s only, and they warn that even veteran spice-lovers "should proceed with caution while eating this product".
The company's website "forbids" under 18s from eating the snack, which are "so spicy that they may cause you pain", with warnings in place for people with weak stomachs, high blood pressure or cuts on their fingers.
There are also diarrhoea warnings if you consume too many, and so people are urged not to eat them alone
The products are made with the ghost pepper, also known as bhut jolokia, which is a chilli pepper regarded as one of the spiciest in the world.
It's said to be 170 times hotter than Tabasco sauce.
The curry crisps - which are Isoyama Corp's flagship snack - have been available to buy since 2013.
According to local reports, the student brought in the crisps "just for fun", and told authorities he had previously enjoyed the snack himself without suffering any side effects, while others tried them and only faced mild symptoms.