I used to know some in college. They all ended up hating me cause I refused to carry a couple of dead-weight chicks that were a part of their group on a senior project. Ended up with them because I was late to class that day... oh well, sh*t happens.
Anyway, they deemed me project leader, and I was cool with that. What I wasn't cool with, was when I asked one of them to create a document about something or another and I got a poorly written email that was less than a paragraph in length.
When I told her we needed a document, she said, "if you don't like my work, then you do it"... So I told the professor my grievances, and that it would save me time if just do the project myself instead of having to deal with them.
Keep in mind, this pre-dated 9/11, so my knowledge of muslims or their culture was nil.
After that, all the muslims in the engineering departments hated me... they would all mean mug me when I walked down the hallway. I didn't get it at the time, nor did I care... I just wanted to be done with all that school crap. I was close, and I wasn't going to let a couple foreign broads ruin it for me.
Edit:
The Russians liked me though :)