However, it’s not just passengers who feel it too, as some flight attendants can easily become annoyed by certain things passengers do. One flight attendant has encouraged travellers to avoid purchasing fizzy drinks during their journey for a specific reason. The air stewardess does not have a specific issue with the drinks themselves, but the fact that they can be a nuisance to serve to passengers. To save time, she continues to serve other customers before returning to fill the glasses of the passengers she has originally served. Another flight attendant previously slammed the 'gross' habit passengers have when it comes to flying, which involves going to the toilet.