Fraternity racially insults guest at party

[annice22]

One of my sisters told me something that really made me mad.

She (my sister) went to her favorite fraternity over the weekend and she took two of her friends over to their house. 2 of the brothers proceeded to say to her are you responsible for this and not understanding what they were talking about they went on to explain that was she responsible for bring the black people.

This made me so mad that I'm going to bring this up to my sorority at our meeting sunday and to suggest that we do not do anything else with this fraternity. Side not we have a mixer planned with them the third week of february. She says that the fraternity is taking care of this but I do not feel as though we should associate with them anymore.

Also, this fraternity also insulted another oney of my sisters who is also my roommate at homecoming by calling her out of her name because we were leaving a party.

What would you do if you were in this situation?