During my two years in Egypt teaching, my spouse did often get cat-calls and the like; however, she was only ever touched once. (It was by a 10 year old boy who hit her butt and then ran like crazy...she wasn't too disturbed by the experience.) I don't doubt that there are people who have terrible times (like TexianTravel describes), but I do question about how frequently this is the case.

In the classroom, I found that SOME foreign students, like SOME of the Egyptian students, hung around with other foreign students. I wouldn't not go so far as TexianTravel as to say this can be expected in all classes or in all cases.

In all the classes I've taught overseas, it seems on the first day of school you can bet all the students of one language or culture will congregate together. During the course of the year, however, things do change. Usually, everyone learns a couple of common languages...

Themeleks.
I taught at Schutz for two years, and that was three years ago. My spouse and I enjoyed our time at the school; it is a small school, however. Living in Alex can be quite a challenge sometimes; the school campus (where you'll live) isn't located in a great part of town, but you are a 10 minute walk to the seaside.
You can take a cab with relative ease to a number of places in Alex, but there isn't a lot to do in the city. Cairo is certainly the place to be because of the ex-pat community.
If you're still interested in Schutz and would like to know more, feel free to contact me...