i've never injected because i know it will just feel too damn good.
i've only snorted heroin before and it was fucking great, so i knew if i started injecting it back then, i would have been fucked......
also, don't know how accurate this is, but the thought of injecting shit like coke & meth just seems dirty to me, like i have no idea what else is in that shit, how pure it is, etc.......
plus i've never really kicked it with folks who were into injecting, maybe if i had been hanging with folks like that earlier in my life, i wouldn't think twice about doing it, who knows