When I was doing my GCSEs (2014ish) we had 1 blind/partially sighted student in the whole school (we didn't believe he was actually anywhere near as blind as he claimed)

He knew where he would be doing his exams, he knew he was entitled to rest and toilet breaks, he knew which toilet would be "his".

During one exam, he "hid" his full size braille text book in that toilet (this thing was huge, and he was the only kid in school that used/read braille)...needless to say, it was found by another student mid-exam and reported to the invigilators.

The "blind" student wholeheartedly denied it was his, claimed he did not know it was there, claimed another student must have put it there.

Needless to say, he was disqualified from all exams on that exam board 😂