Every sign has its own peculiarity.
Aries
Never get into a fight with them
Aries is bad tempered, aggressive and impulsive. Plus, they are athletic and strong and may be violent.
Taurus
Never steal their food
They will be happy to share it with you, especially if they made it themselves. But if you steal something from him, he will be very offended and will lose all respect for you.
Gemini
Never tell him to shut up
For him, communication is the key thing, and if you tell him to shut up - that would be as if you cut off his hand.
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Cancer
Never criticize them
Cancers are a little insecure and every criticism, even those well-intentioned, is like a punch in the stomach for him. In fact, it would hurt less if you actually punched them.
Leo
Don’t try to surpass them
Leos like to be the center of attention, and if you try to take that away from them, they will hate you all their life.

Virgo
Never try to tell him he’s wrong
Virgos will use all their energy to show you that they are right and you're wrong - and it won’t matter how much time they’ll need, even their whole life.
Libra
Never argue with them
Libras don’t like conflict and pressure when it is necessary to make a decision. If you decide to push them anyway, you will experience a complete breakdown - and it's not a pretty sight.
Scorpio
Never lie to them
These are passionate men who can’ forgive lies. If you get caught in one, things can get bloody.
See also: HOROSCOPE: Qualities that make everyone envy you
Sagittarius
Never try to tie them to yourself
Sagittarius needs freedom, both physically and mentally. If you are too demanding or want to prevent them from going somewhere, they will simply explode.
Capricorn
Don’t pretend to be something you're not
Capricorns are very honest and direct, and when someone is pretending to be something he’s not in front of them, they will immediately start to hate that person.
Aquarius
Don’t try to change them
They are unique and definitely live life by their own rules, and if you try to change them into something they’re not, they'll hate you for life.
Pisces
Don’t try to trick them
Pisces may be too sensitive and if you play a practical joke on them or try to trick them - be prepared for an emotional episode that can last for several seasons.