The belief that a cosmic Jewish zombie who was his own father can make you live forever if you symbolically eat his flesh and telepathically tell him you accept him as your master. Besides fostering drunken behavior at cheap weddings by turning water into wine, his resume lists the ability to remove evil forces present in human souls present because a rib-woman was convinced by a talking snake to eat an apple from a magical tree...
Conviction that their TV is going to devour them at night (Researchers claim that the movies Poltergeist I & II are responsible for this, and that the fear they caused extends far beyond any single religion. Researchers also admitted to encasing their televisions in cement blocks at night.)
Sudden bursts of singing songs that talk about some Puerto Rican guy named Jesús
Hallucinations that consist of seeing their money transform into creeping centipedes, and that the only way to get rid of them is shoving them up the asses of the poor and ungodful (they call it charity)
Allergy to printed paper except to the pages of one book, Ethel the Aardvark, as it is the only book they can read. Christians believe it contains the celebrated answer to Life, the Universe and everything. They seriously believe that if Ethel the Aardvark did not say so, it doesn't exist