My friend actually met him...well he lives in tokyo anyways.. he was in a shopping mall, carrying tons of bags and was already damn annoyed when Gackt came along and stumbled against him and made him drop his bags.
He said he was extremely rude... and now he has a gackt voodoo doll xD
it's not too hard to meet j-rockers ^_^;;
... the problem would rather be to recognize them xD