3. You have a pale face and a red nose.
Before boarding the plane, airport employees may ask a passenger for a note from a doctor that says that their illness presents no danger to the people around them and cannot be spread via the air. But the person that coughs and has runny nose can be allowed on the plane if they say that they’ve had an allergic reaction to cats. This is a lot of trouble for flight attendants, because they have to ask them how they feel, pay extra attention to them, and also look for a seat far from the passengers that are afraid of getting infected.
4. You have leaflets and brochures.
What if a passenger starts talking to everyone around them, trying to convince them to join a cult or something like that? The main job of a flight attendant is to make the flight as safe and comfortable for everyone as possible. This is why agitated passengers who want to share their wisdom with everyone around are a nightmare.