I went to a small town in the mountains called Breckenridge and sat around a nice condo all weekend. I watched college football, sat around in a jacuzzi, and played billiards. I'm apparently terrible at the latter now, despite being fairly good when I was younger. It would've been a nice weekend except my girlfriend's sister is a selfish whore who believes she is the only person that matters in the world and more or less made the weekend hell for anyone that wasn't her.

Can someone explain to me why it is socially unacceptable to punch a girl in the nose?