This video shows the moment a hazmat team boarded a plane and removed a passenger, after he stupidly made a joke about having been to Africa and caught Ebola. His remark caused a two-hour delay, even though flight staff were sure it was just a rubbish joke.
Here's the entire event, in which numerous citizen journalists can be seen joyfully taking photos and videos with their phones despite the possible presence of the death germs:
So no jokes about coughs and snotty noses probably being Ebola on Twitter, especially if you're getting a flight within 72 hours. [YouTube]