the worst thing a proctor can do

It's a lazy Friday afternoon. It's elective day. That means the class-turned-exam rooms are barely filled with examinees (the rest of them are at home cramming their papers, which can sometimes be the greater evil). Our IEL 2 exam was making the cogs in my brain work like horses (Question No. 1 said, "Choose 2 or 4 items to define. 10/5 pts. each." Do I choose 2 or does the prof want 4?) when all of a sudden, our proctor takes out her nailcutter and yes, cuts her nails.