I really didn't know how to title this. It's from an article on TSM, but it's the video that's worth watching.
The setup is members of the University of Arizona’s student organization Movimiento Estudiantil Chicano de Aztlán (MEChA) witnessed girls going into the Tri-Delt house dressed in Mexican costumes. And showed up to the house to talk to them about it.
I think the member handled it fabulously, I would of been stunned silent.
http://youtu.be/ZFqUh38TODA