It’s all in the past. But I feel for the OP. And these other kids. They aren’t made of Teflon and perhaps that was their best day.
But get back up and dust off and all. But just feel pissed at adults with limited responsibilities to get these things right.
Knowing what test you’re proctoring, being able to read the instruction key and setting up the room to be compliant ( even for exacting measurement standards demanded by Principal Precision)
This is not a moon landing folks.
Embarrassing level of unprofessionalism- when all you’re looking for is basic, modest adult level competence as a measure.