Full disclosure: I was raised in a heavily Christian household, but I am now an atheist, though I read the Bible a lot because I find the book itself fascinating.
I ask this question because one of my cousins just posted one of those crappy share-whore meme pictures to Facebook that's about 40% JPG artifacts. It said that "whenever you carry a Bible, the devil gets a headache, whenever you read it he flees, whenever you live it, he screams" etc. etc. Got me thinking, in the Bible isn't the only thing that keeps Satan's power out of your life just your faith and not the actual symbols of your faith? To my knowledge there isn't a place in the Bible where a symbol of faith scares away a demon or Satan. Every time I remember demons being cast out of someone, it was done solely with faith and the demons fled.
Do you think some Christians confuse the concept of Satan with the concept of Dracula, that he's somehow scared of cross symbols or the physical bindings of the Bible (like if you walk around with a pocket Bible, then it acts like wearing a garlic necklace around vampires)?