Would never stab anyone:
Pisces
Libra
LeoWould stab someone in retaliation:
CancerYells "I won't hesitate bitch" first:
Gemini
Taurus
Aquarius
(I'm putting myself over into this category as well)Would stab without warning:
Capricorn
SagittariusWould stab as a warning:
Virgo
Aries
Scorpio (yes)