Rant on Acceptable Social Behavior: If you have to blow your nose in class, fine. Please do. It is when you honk into your tissue and then open it up to examine the contents that I object. A repeat of said action into the same tissue does not improve the situation. Nor does the digging-with-tissue-covered-finger repeatedly, followed by more inspection. This is not OK. You are a graduate student, which means that you are an adult. Please behave like one.