There are words that you just don't say in specific situations.
"Fire" in a crowded theater, "bomb" in the TSA line, "gun" near a presidential motorcade and "news" when preceded by "Fox" and followed by "network."
The newest word to enter the lexicon of "Don't say this out loud, you bonehead, especially in a 767 packed with paranoia," is "Ebola." And with pretty good reason.
As if we needed a wake-up call about cautious use of the name of the world's scariest virus (at the moment, anyway), on Oct. 8, a passenger on a U.S. Airways flight from Philadelphia to Punta Cana, Dominican Republic, made enough of a joke about having the virus that the flight was grounded and the plane isolated, according to a video posted on YouTube by fellow passenger Patrick Narvaez, who as of Thursday had 21 subscribers.
http://blog.sfgate.com/travel/2014/10/09/ebola-joke-gets-passenger-kicked-off-plane-leads-to-latest-no-fly-word/
This was sent to me and I decided to share the article for the first sentence alone.