HE TOLD his classmate not to be rude to their teacher, and ended up getting stabbed on his left arm with a penknife.
The victim, Sim Jingwen, 15, told The New Paper over the phone that he felt his classmate was rude to their English language teacher.
The Secondary 3 student from Anderson Secondary School in Ang Mo Kio said that after the lesson, he approached the classmate and they quarrelled. Jingwen ended up with 1.5cm long wound which needed eight stitches.
There have been a recent spate of violent incidents in schools, including one last month in which a boy was cut on the head with a paper cutter.