I wish I had a plot of voltage on the X-axis and danger level on the Y-axis for AC and DC. I was talking to an engineer at work, he was telling me that DC is more dangerous at high voltage. I said I disagreed with him but did not do into detail as to why I thought so. I did say that I've always heard that DC had a tendency to be more dangerous. His response was that "DC only goes through you once, whereas AC continuously goes back and forth and rattles the heart". I think that with a limited current the body would be seen as a high impedance, and above some current they are going to be equally lethal. I did not make any reference to frequency, so he may have figured I meant only 60Hz as we have supplied here. My question is: which type of current is inherently more dangerous, and why?