the foil method is not very effective, you won't get much of a rush, the high will just slowly creep up on you.
this happens because u cant just smoke up a dose of h in one hit.
i have a better method... the cigarette method.
this method will hit u so hard that you'll be floored, so smoke it on your bed.
take out 1.5cm of the tobacco on the tip of a cigarette.
pour a whole dose of heroin into the cigarette and fill the rest of the cigarette up with tobacco. pull out the cigarette filter.
now light up, sitting on your bed, when u see that your cigarette is about to reach the point where the heroin is..
exhale and hit that motherfucker for as long as you can. hold it in for 30 seconds and exhale.
this method's rush should hit u so hard youll fall back.
if u can, smoke the rest of the cigarette, just don't burn a motel's pillows n sheets like i did last time.