I'm sure there have been plenty of studies to show that fucking around with someone's head is just as damaging, if not moreso, than actual physical abuse, and I'm just as sure there are many cases of women abusing their psychological power over their husbands, for example the child custody issue already mentioned. Also if a woman physically hits her husband, regardless that it might not cause the same degree of physical harm that would be experienced were the roles reversed, the intent is still there and should be treated just as severely. Finally, it should be noted that just about every woman has a the ability to throw heavy objects through the air with a reasonable amount of force, and as such does not need to be bigger than her husband for abuse to occur.