If a woman hits a man is it acceptable for the man to hit her back - hard enough to knock her out?

as far as im concerned, hitting me, even slapping me, is an invitation for me to lay you out. I don't care if you're 12 years old.

Yes
No
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8 mo
* in the context of someone assaulting the man.
If a woman hits a man is it acceptable for the man to hit her back - hard enough to knock her out?
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