Some people just do it for the purpose of scaling, or were overconfident that they only have 10 units. I mean, my maths teacher (who is strictly chinese), has been trying to force this guy to drop, but can't because he only has 10 units. So there he is, becoming someone you can rely on to prevent you from becoming the last person on the class...
Btw, I said chinese because most asian teachers are just deadset strict (When I was in indonesia, it was damn crazy strict, they hit me with board rulers for doing bad things in primary).
Oh and turtle was pretty sure he scored around 120, but he thinks the board officials chunked him down by one mark so he don't get that 100 mark
Damn.. my rant became long as I'm sleepy (equivalent of being drunk). Taht's sn exucse for my long psot...
edit: thanks for the scan freakout