^^^
cant speak for others but for me it was a matter of either going into withdrawal or not. I didnt have enough white pharm smack left to snort in order to prevent me from clucking at the time, so i decided to IV it, and after that well.....i certainly did it more often than not.
But I only do pharmacutical amps that way.nowadays i have far too much respect for my body - i wouldnt put shit that i had no idea of what was in it into my poor defensless blood stream.