Even if you primarily use stimulants and don't think you'd have much interest in heroin, addiction is still a real possibility here as you already know and there are lots of people on here whose lives have been changed forever by having tried heroin. Though, addiction is not a guarantee, but it's a possibility that you must consider. In fact, heroin is the most addictive drug, worse than meth in terms of addiction potential from what I have heard. Someone could try it once and be in a state of incredible bliss like you can't even imagine and fiend for it to a degree that feels damn near impossible to control and spiral into full-fledged addiction. Someone else could try it and hate the stuff and never want to go anywhere near it again. Or anything in between. So, I wouldn't simply assume that addiction isn't something to be concerned about because anyone can become addicted to heroin, despite their previous drug of choice. If you do it, use as low of a dose as possible and don't use it multiple days in a row (even if it's just a couple of days).