I would also fear Scorpio's temper, because they can hold it in for days, weeks, even years before erupting..
Good point that I'll add to my previous post: If the hurt was bad enough retribution could become a fun game to play.Sagittarius mainly likes to get even for any wrong they perceive done to them and they generally like to do it in an surreptitious manner.
I would say this is pretty accurate @Virgo18, except I think you meant "unpredictable", not "unreliable" in terms of the Mars/Uranus square. As Horus said, it can come suddenly. I have this aspect. I also have Mars rising in Leo. Also Mars conjunct Saturn. And my Mars squares Mercury in my 10th. So yeah, I can open up a pretty big can of verbal whoop-*** when provoked. And my Mercury is in 10th, so I like to do it in public, and my profession pretty much calls for that. And Piercethevale also is on the money about Capricorns, Muhammad Ali was a Capricorn. I have a Capricorn moon, and I do box to blow off steam..Saturn conjuncting Mars keeps the anger in check, but makes Mars that much more combustible when he reaches his boiling point..Mars conjunct/square/opposition Uranus... *unreliable* short temper
Mars conjunct/square/opposition Saturn... dangerous when it loose patience
Mars conjunct/square/opposition Moon... aggressive, non-considerate
Mars conjunct/square/opposition Pluto... extremely hot headed
Mercury conjunct/square/opposition Mars... verbally aggressive