One of the signs that religion is getting out of control is when it interferes with work or school. Pious-sneering when you have tests is one prime example--I would classify this as the religion becoming an addiction, or an idol (which the Washtowel supposedly specifically prohibits). Some of the other signs are excessive or compulsory church attendance or Bible study, excessive missionary work or evangelism, contributing beyond your means, and feeling guilty when you have to cut back on church functions or you miss a function.
When it gets worse, it leads to worse problems. People affected begin to hate others for not believing what they believe, they only watch religious programs or listen to religious "music" (especially serious when they only watch or listen to programs from their own religion), the "smiley mask" where they deny their feelings (not to be confused with the "I'm learning something new" or the self-righteousness feelings, which will fade in time), and they are not able to take personal credit. They can lose their jobs for prosyletizing (or because their religions make excessive demands on their time).( http://see_the_truth.webs.com/BreakingFree.html for the source of this information)
I would suggest that, if anyone is going to pious-sneer despite its causing them to flunk a major exam, they really need to break free from religion and soon. I suggest visiting the above web site--cut and paste to your browser if necessary--and reading more of the symptoms that your religion has gotten too much control of your life.
