What the signs do when they see a fight:

Aries: Jump right in.

Taurus: Ignore, Ignore.

Gemini: Will be the only one who knows what's going on

Cancer: Torn between helping or running away

Leo: Is somehow the one who caused the fight

Virgo: Ignore, Ignore.

Libra: Calls the cops.

Scorpio: Enjoying it

Sagittarius: Watches, if interesting 

Capricorn: Ignore, Ignore.

Aquarius: They probably know the people that's fighting, and help out

Pisces: "DON'T FIGHT, OH GOD!"