1. Use a squat toilet the wrong way.
Living in South Korea, I learned quickly that is there is a right way and a wrong way to do everything, and that Koreans will go out of their way to help you correct all of your errors. I failed to take this into account when using a squat toilet in one of the doorless stalls in my school. Had I used the toilet correctly — facing out — it’s likely no child would have noticed me. However, using it backwards — facing the wall for a little privacy — rocketed me to a near Rockstar level of infamy for being The Teacher Who Doesn’t Know How to Pee Right, and caused me to have to face my Korean coworker’s well-meant inquiry, “Do you need help to go to the toilet?”