Second most important lesson:

Most Thai food has sauce that I can't eat (oyster sauce, soya sauce and most fish sauce) thereby limiting my culinary ability a bit, or enabling me to be more creative? Either way, this class lead to Noi writing me this note to help me no get so sick on my trip. It says something along the lines of:

"I'm allergic to wheat, soya sauce, oyster sauce and milk" in Thai, and has been very helpful so far :)