I don't get the use of an upside down cross as a satanic symbol. I believe it was Peter, one of Jesus' apostles who asked to be crucified upside down because he didn't feel worthy enough to be crucified in the same manner of Jesus. In that sense it seems more of a sign of respect towards Jesus then anything relating to Satan. I'm pretty sure the upside down cross was made popular by movies. I wonder if real Satanists have it as a symbol or if its just a pop culture symbol.
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