My new hero is the student in a class of mine who sent me the following email:
There is always a student who shows up 10 minutes late to each of the (…) lectures, carrying a box of takeout food. He proceeds to noisily eat it while you lecture. This is highly distracting [as well as disturbing; this guy doesn't know how to use chopsticks], especially for those of us who chose to follow the rules. Please take some action as to inform students that eating in class is disrespectful not only to you, but distracting to other students who are trying to take notes. Thanks.
See, eating noisily during class is annoying enough. But not knowing how to use chopsticks? That‘s disturbing!