At UGA we always have girls lie about legacies and activities and such. Such a silly move... usually it's just padding, too, from already fabulous girls who don't think they're good enough for a competitive rush. It's a shame that they feel like they have to lie to be good enough for any GLO.
An interesting thought I just had- I went to two high schools (one in 9-10 grade in MA and one in 11-12 grade in GA), and there were some things I was involved in at my MA school that I was not in GA... for instance, I was on student council. When I went through rush, a girl at one house said she had been interested to meet me because she went to my high school in GA and was student council president, but had never met me. I had to explain that I had gone to two high schools (something that was not an option anywhere on the application). I wonder only after reading this thread if any houses cut me because I had an activity listed for 9th or 10th grade that girls from my GA high school had not seen me involved with.