Corrected entry: In 'Graduation Day, pt 2' Percy and guys who are presumably other students are fighting at Angel's side, but shouldn't they have been at the ceremony with the others? Even if they just didn't show up there would have been noticeable gaps in the seating, but in all the previous shots every chair is filled. (00:28:55 - 00:34:55)
Corrected entry: In 'Graduation Day, Part 2' all the parents run for their lives after the Mayor ascends. Doesn't a single one of them worry about the kids they're leaving behind or try to get them to run too? (00:33:20)
Correction: Wouldn't the kids have explained the situation to them? After all, you don't normally take a weapon to your graduation, and you would be smartly dressed for the occasion.
Correction: Buffy would have used other students from within the school to fill in certain seats (probably at the back where it would be harder to recognise them).