If a heart is a symbol of love, what is a symbol for hate?

how about a heart with a knife through it and a drop of blood falling from the heart?

Since hate is the opposite of love, I suggest an inverted black heart contrasted with an upright red heart.

The symbol would be a human being devoured by something evil looking. Some type of monster, with the teeth prominent and the human crying out in pain.

a black heart

Because you really want the antithesis of the heart of love, and yet since it's not a good idea to use something like the Nazi swastika (a terrific symbol of hate if there ever was one), how about a darkened heart with the red symbol for "NO" over it? That is, a red circle with a diagonal? I think people would get the idea.

The symbol of hate is a skull or lightening

thumb down

a broken heart, or knife through it.. http://www.funtoos.com/d/afull/broken_heart_dagger_tattoo.jpg http://www.tattoo22.com/ht971.jpg ...

There really isn't a symbol that depicts hate, as hate isn't seen as a desirable emotion. Perhaps a circle with a line through it over a heart or a heart that is peirced or broken could be used for balance.