Lynk Former Wrote:"What the hell is your problem? So she's topless, who cares, jeebus, why are you apologising for?"
In the first case its modesty and for being sorry for intruding upon her while in a state of undress.
Males slapping females typically is used as either a form of discipline, wake up call, or just a sort of "Hey wake up and stop acting stupid!" as well as form of dramatization to emphasize disgust at an action.
Females slapping males has the same effect, except that upon the male its not viewed as consequential, just her way of getting to the thick headed subject she slapped.
Take in part to Gundam (here I go) Slapping is used everywhere, including punching. Mostly it is used as a from of discipline or wake up call regardless of sex of the characters.
As for Love Hina, that is slapstick in a perversely abused use of it.