A technique that allows someone to evade religious functions, scripture lessons, and the such on the basis that it's against your religion. However, this is not restricted to atheists, agnostics, Buddhists, Hinduists, or the such, as one can pledge allegience to a certain obscure or obsolete sect of the offending religion (the one you're trying to evade the dogmatic vapulations of). One can plead on a lack of proper personnel to fulfill the required sacraments of the sect, or plead on deeply-held beliefs. Here are a particular few that I suggest would be the best in a Christian context: