I used to work with a Sikh from India. He used to take his shoes and socks off and clip his toe nails while he sat at his desk. When he got his nails down short enough, he would then use the pocket clip part of a ballpoint pen top to scrape out all the toe jam from beneath his nails. He used to do all this while carrying on casual conversations with others.
And he believed the reason people didn't like him was because we were all a bunch of red-necked racists.