Why do metal fans...

I've seen a group of people in Gorgoroth and Immortal shirts doing it in the Coop
 
I was in greece at a beach (Porto Rafti for who's interested) and i heard someone screaming 'metal'...... i screamed back. obviously.
 
Su Jacko said:
What is this growling thing? Can't remember seeing that in Wilson's or freewheelers 'rock' pubs/clubs. Or does it just happen in supermarkets? :D

Them were the days when rock was rock. Newcastle Brown and spliffs :)
before all the rich kids and nerds got into Enter Sandman :(
damn I'm having a nostagia attack again :erk: