What not to do in a lecture

A list of things you should avoid doing in a lecture;

• snore
• fiddle/spasm with your legs
• sit at the front
• sit at the back
• log into your bank account where everyone behind can see
• arrive early
• arrive late
• sit down, turn your laptop on, press record, go to sleep
• bring textbooks
• put your phone on vibrate
• put your phone on silent

Any more suggestions you think I should put up here?
Please add your input in the comment section below, I'm all ears.