The other week I wore my Nasheim t-shirt to work, and this ditzy stupid girl came over to work on my line. She asked "what's your shirt say", I said "Nasheim", she says "what's that?" and I says "A Swedish Black Metal band" and thinks 'Oh bugger, gone dropped myself in it now'. She asks "what's black metal?". I search for an basic idiot's guide that didn't involve the words cold, grim or cult, and settled on "it's basically like RRRROOOOOAAAAARRRR" and thinks 'better explain, not like Slipknot though'. Before I could open my mouth she goes "what, like Slipknot?!"
>_<
As it happens, most of my friends will admit to liking heavy music when I'm around...their collections leave a lot to be desired though. Bless 'em.