I no longer teach hand applique because I want to concentrate on my own projects. But when I did, I experienced all the things you have all mentioned - late to class, no supplies, no experience, etc. Most people were absolutely great, and I really enjoyed getting to know them. But t stopped teaching when I encountered a person who kept interrupting me with questions. i could see the other people in the class shifting around in their chairs. After many interruptions, I had to be rather rude and ask the person to hold her questions for a while. But she said she had paid for the class and was entitled to ask whatever and whenever she needed, which was all the time!