jen: Ok, so how would you reprimand a student for picking his nose at the desk?
theloudlibrarian: Oh god. Are you serious???
jen: Yes, I'm afraid I am.
theloudlibrarian: Oh dear.
jen: I guess that goes to improper desk behaviour.
theloudlibrarian: But then when he asks what that is, you'll have to explain...
theloudlibrarian: Can you tell him to stop being a biohazard? ;-)

The perils of working with undergraduates in today's institutions of higher learning...