Many, many years ago when I was just a budding metal-head, my band of choice was Iron Maiden. I had not yet developed an ear or a liking for metal other than Iron Maiden with the possible exception of Black Sabbath but, even then, it was Paranoid and not much else. Then, one day, my buddy Rod introduced me to Venom's "Welcome To Hell" album and, frankly, it scared the crap out of me.
Never before had I been exposed to something so brutal, so heavy, so demonic. I had no interest in it. I was content to listen to the first four Iron Maiden records and go about my business.