When is it okay for a man to hit a woman?

The only 'beating' a man should do to a woman, in my opinion, is mental abuse. Not in a horrible, disgusting way, but the way a woman does it to a man. Women have always complained about how they wish they had equal rights and treatment as males, but what do they do to us? They freaking own us. >_> They use us as a puppet to get whatever they want.