You are developing a sense of stereotype of a certain GLO, simply because what they are in your campus. Then, everytime you see or hear that certain GLO, you would bring up the stereotype you develop in your mind.
I think I develop that sense of stereotype to certain GLO from GC, especially for the GLO that don't have a chapter at Iowa State. So, I know it is not fair, but I would definately think of ktsnake or kitso when I see/hear Sigma Nu for instance, or ladies of Delta Gamma and Alpha Phi from ladies here.
My 0.02 cents