I am surprised I am not a metal head, it was all around me growing up and in my early 20's. I do have some fond memories and I still like some mainstream stuff.  My step-mum worked for a record company in the warehouse and we'd get to work there on school holidays.....I remember having a decent Black Sabbath collection as a result.
Not Black Sabbath, but a favourite and classic from my early teen years, I am sure my parents thought I was worshipping the devil.  
https://m.youtube.com/watch?v=2lvs2FzF64o