In violent relationships or marriage, why do more men (psychos) than women use fire or acid?

I feel terrible for everyone that got stumbled with a real dangerous, violent person.. with someone crazy. Though I've noticed that whenever a violent partner is upset after their victim walks away, men and women vary in their methods.

More violent men than women are prone to dousing the poor woman (whom they once claimed to love) with gasoline and setting her on fire or if they just don't to hurt her badly but not kill her it's throwing acid to her face. If the lighter doesn't work and there isn't an acid available, a knife or strangulation are his other options.

Whenever a woman wants to get rid of a boyfriend or husband, her most common weapons are either poison or hiring hitmen to beat the poor man to death. Rarely do they rely on fire, knife or gun unless a hitman refuses and there isn't a poison available. If they want to hurt a man badly but not kill him, she'll falsely accused him of domestic violence or rape. But seriously what's up with the fire and acid attack? That's the most agonizing thing to do to a human or animal.

In violent relationships or marriage, why do more men (psychos) than women use fire or acid?
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