^ me too. I can remember that moment like it was yesterday, those exact feelings of amazement as the whole process was carried out. It is actually kinda sickening
I was booting meth (at least) everyday for quite some time before stopping altogether. I must admit, throughout the past year, i have booted maybe 4-6 times (these are the only times i have had drugs) and each time I find it more and more sickening, which I am actually thankful for.
Whereas before I think I was addicted to the whole process, as much as the actual drug, the past few times that i have managed to get into a vein relatively easy has not created those same feelings of excitement. Each time i see the blood hit the barrel i am faintly nauseated and automatically feel disappointed with myself.
In terms of the stigma experienced by IV'ing drug users, I was more surprised at the amount of it generated by other non-IV'ing drug users. So many of my friends who used drugs, but did not boot, irritatingly took the moral highground on this issue and essentially just wiped me. I was dumbfounded. Half of them ate about 6 pills a night and then as soon as they found out i was doing it that way felt the need to axe me. I can understand it to a certain point, but really, when your friends are getting just as fucked up as you, the method seems rather immaterial 8)
Because of this whole experience with other, highly moralistic, drug users i soon became aware of this whole injecting subculture that people who do no boot aren't really aware of. It was quite fascinating. Everything is so secretive and as someone has said, you always have to make excuses as to why you need to pop out, spend ages in the toilets etc.