1. You order a "black coffee" then ask why it doesn't have cream and sugar.
2. You don't wear socks.
3. You walk onto the plane using your laptop because you're incredibly important.
4. You don't flush the toilet.
5. You poke the flight attendants to get their attention.
6. You ignore obvious cues from your seatmates that don't want to talk.
7. You never watch the safety demonstration.
8. You practice yoga in the galley.
9. You try to bring on 17 bags.
10. You leave your seat like this.
Don't be that guy.