If you are an American atheist with a job and you have more than a handful of co-workers with whom you interact regularly, chances are pretty good that you have experience dealing with Christians in the workplace. Some of these Christians would never dream of wearing their religion on a chain around their necks, decorating their cubicles with bible quotes, or repeatedly inviting you to attend their church long after you've made it clear that you have no interest. Consider yourselves fortunate because many atheists have to deal with an entirely different breed of Christian.
Evangelical Christians who wear, display, or push their religious beliefs in the workplace can be a problem. "Hostile workplace" generally refers to a form of sexual harassment, but many atheist workers experience another sort of hostile workplace. Express their feelings about religion, refuse to participate in prayer meetings, or turn down enough church invitations, and they can be ostracized, harassed, or even fired. Legal assistance is expensive, and religious discrimination in the workplace is not always easy to prove.