Mirror Boris Gets Suspended at School is an episode from the Alternate Universe Oddities.
It is report card day at school. Mirror Dora, the teacher, is giving out the report cards. Mirror Warren Cook and Mirror (Bad User) open their report card to find that they got A+ in every single subject, while Boris is horrified to find that he got F- in all subjects except attendance, which he got an A in due to 100% attendance. Mirror Dora yells at Boris for failing every single subject and tells him to go to the principal's office. The principal tells him to go home as he is suspended due to poor grades and behaviour.
Later, he is grounded by Mirror Caillou for a hyperplex years.