On a lighter note ive never done Coke but im addicted to Sprite Zero, does that count?
In all seriousness though, i havent 'done' anything harder than a joint in my life 'cept for one tim when i had a bad E trip while on a night out with the lads and even that wasnt deliberate, one of the cunts dropped it in my drink, something to be said about friends like those but i dont quite remember it