Jabberwocky
Frumious Bandersnatch
Maybe the people I knew had some weird body make up that experienced bypassing first pass metabolism and full on effects within seconds very enjoyable and reinforcing. Although I do not get/understand such a difference between IV and smoking to be honest. Maybe is the matter of how much in short span of time...? I don't know. But transition to IV route was always followed by pretty rapid decline of the people I knew. I don't want to derail a thread so I will not argue (I don't even have first hand experience). I don't believe that "don't IV" is a bad harm reduction advice in general.