A person who is addicted to acid is seriously fucked up considering its not physically addictive at all..
Did you even read my reply? Coke isn't physically addictive, nor is meth, acid, weed, ecstasy. But people can and do get addicted to these drugs all the time.
I will admit that there are few LSD addicts, but they do exist. My friend was driving us around on 3 hits of strong acid, and was probably driving better than I do when I am sober! It was just like playing a video game or something for him though. I was in the back of his car on 2 hits of the same acid and I was seriously tripping. Two more of my friends were in the back on 2-3 hits of the acid also; they later left us and went downtown at 8AM (took the cid at 12AM) and bought beer with a fake ID and walked around downtown drinking beer and randomly harrassing morning joggers until the police came and arrested them for disorderly conduct. One of them started to run away and then stopped, so the cop decided to subdue him with pepper spray (it's no wonder that he had a psychotic episode a month later, and is now in a mental institute) They got to finish their trip in a holding cell (the one who got sprayed was thrown into the cell so hard that he had bruises on his knees and arms-police brutality). After getting released, one of my friends said that he thought he was invisible so he couldn't get in any trouble. So it was some strong acid. (Apparently not too strong for the cid head, because he didn't go to sleep that night and then went to a rave the next day on no sleep and took several more hits because of the tolerance thing, along with some ecstasy of course.)
Anyways, my acidhead friend was an incredibly nice person, lots of fun to hang out with (I get a grin on my face just thinking about some of the things he has done). But he needed some "trip" every weekend. The only way a stranger could tell he was tripping was by his huge pupils, so he just wore Oakley sunglasses when he tripped in public. Still, you could tell that he has done acid hundreds of times, just subtle things if you know what I mean. Definitely addicted to acid though.