Scorpio is the one most prone to violence and probably the most likely to be a serial killer.
Libra may love harmony and beauty, but being one of the most sarcastic of the zodiac signs, Libra will resort to a sick joke in almost every situation.
Gemini isn’t really aware that their humor is so dark and disturbing, leading to not just alienating people, but insulting them, too.
The only thing that keeps Cancer from claiming the top spot on this list is the fact that they tend to keep this aspect of their sense of humor to themselves.
Virgo, if you get them alone they will blow your mind with their sick sense of humor.
Here is the list of zodiac signs with the sickest sense of humor