My pledge sisters referred to me as the "Rushee from Hell" the whole time we were all in college.  They were right, unfortunately.   After the first round of parties, I cut 9 out of the 12 sororities on my campus.  Didn't even make an effort to get to know any of the women in the groups; just cut on basis of how popular the house was.  I actually still cringe in embarassment when I think of that, many years later 
I'm thankful that karma didn't come around and bite me on the butt and I ended up happy in the house I wanted.  And I'm also thankful that the women I was so rude to during rush either didn't remember or were exceedingly kindhearted because I ended up being friendly with a number of them during my college years.
I think I could probably be used as a textbook example of how NOT to go through rush!