Thus, there is no such thing as an "evil" symbol. There are many symbols that depict evil, though.
Many Christians are afraid of symbols disguised in rock album covers and the like. They research the most esoteric symbologies so that they can point and shout "Aha! Devil worship/Blasphemy! Told you so!" They shrilly protest that these symbols can somehow influence the minds of minor children to partake in drug use and the raping of virgins and puppy burning and other devil-worshippy things, even though these children have absolutely no idea what those symbols mean.
Of course, the zealots are eager to educate them. The fundamentels of my knowledge of occult symbology was taught at the feet of my fanatical mother and grandmother. My appreciation for heavy metal stems from their strong admonitions to avoid "Satan's music" and stick with Jesus music (i.e. Country and Gospel only). They seemed thatto fail to see that the trappings of Satanism these days are more about rebellion against the oppressive power structure (represented by God, the ultimate force of law and conformity) than spitting in the face of God (the one that Christians believe to be real and the actual creator of the universe). Hell, I enjoy the Satanic rationale and don't even believe in any gods, so it's not rebellion about what "you know in your heart to be Truth."
Daemonologie is where the fun stuff's at if you want to spit in the face of the Creator. Get your labels straight, people.
Of course, the mistake of assuming a symbol is universal isn't limited to Christians, either. I've seen many Wiccan pages that happily promote Latin phrases and obscure gods in their spellwork, knowing that the beginners the page supposedly caters to have no idea what they are saying or to whom they are begging aid. Yes, latin sounds cool in a chant. You know what's cooler, though? Knowing what you're saying! Concept! Beseeching the aknowledgement of a Power is just as futile if you don't know anything of the entity you are calling! Study mythologies before you try to summon a god. It's usually good to differentiate between the ravenous, flesh hungry diety that you can send after your enemies and the ravenous, flesh hungry diety that only wants to consume the person who woke him/her/it from it's restful nap in the city sunken at the bottom of the Pacific.
Naturally, using Latin (or other languages) or familar dieties nobody else knows is quite fun. It seems to set a certain mood.
Remember that symbols are what people make of them. If a symbol drawas something to mind it is effective, whether or not it was the concept its author intended to evoke.
